diff --git a/build.gradle b/build.gradle
index fdb1d7b..08eaf19 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ plugins {
 }
 
 group 'sh.okx'
-version '3.4.2'
+version '3.5-beta'
 
 repositories {
     mavenCentral()
@@ -22,17 +22,21 @@ repositories {
     maven {
         url 'https://raw.github.com/PyvesB/AdvancedAchievements/mvn-repo/'
     }
+    maven {
+        url 'https://jitpack.io'
+    }
 }
 
 dependencies {
     testCompile group: 'junit', name: 'junit', version: '4.12'
     compile 'org.spigotmc:spigot-api:1.13.2-R0.1-SNAPSHOT'
 
-    compile('net.milkbowl.vault:VaultAPI:1.6') {
+    compile('net.milkbowl.vault:VaultAPI:1.7') {
         exclude group: 'org.bukkit'
     }
     compile 'me.clip:placeholderapi:2.9.2'
     compile 'com.hm.achievement:advanced-achievements-api:1.1.0'
     // if compiling this you will have to download and install mcMMO locally
-    compile 'com.gmail.nossr50.mcMMO:mcMMO:2.1.17'
+    compile 'com.gmail.nossr50.mcMMO:mcMMO:2.1.+'
+    compile 'com.github.Ben12345rocks:VotingPlugin:5.18.2'
 }
diff --git a/src/main/java/sh/okx/rankup/RankList.java b/src/main/java/sh/okx/rankup/RankList.java
index b6f19f8..3574e50 100644
--- a/src/main/java/sh/okx/rankup/RankList.java
+++ b/src/main/java/sh/okx/rankup/RankList.java
@@ -1,6 +1,8 @@
 package sh.okx.rankup;
 
 import lombok.Getter;
+import net.milkbowl.vault.permission.Permission;
+import org.apache.commons.lang3.Validate;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.entity.Player;
@@ -53,11 +55,18 @@ public class RankList<T extends Rank> {
   }
 
   public T getByName(String name) {
+    if (name == null) {
+      System.out.println("n");
+      return null;
+    }
     for (T rank : ranks) {
-      if (rank.getRank().equalsIgnoreCase(name)) {
+      System.out.println(name + " <> " + rank.getNext());
+      if (name.equalsIgnoreCase(rank.getRank())) {
+        System.out.println("y");
         return rank;
       }
     }
+    System.out.println("l");
     return null;
   }
 
@@ -72,9 +81,25 @@ public class RankList<T extends Rank> {
     return null;
   }
 
+  public String getLast() {
+    List<T> list = getOrderedList();
+    return list.get(list.size() - 1).getNext();
+  }
+
+  public boolean isLast(Permission perms, Player player) {
+    String last = getLast();
+    String[] groups = perms.getPlayerGroups(null, player);
+    for (String group : groups) {
+      if (group.equalsIgnoreCase(last)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
   public T next(T rank) {
     for (T nextRank : ranks) {
-      if (rank.getNext().equalsIgnoreCase(nextRank.getRank())) {
+      if (rank.getNext() != null && rank.getNext().equalsIgnoreCase(nextRank.getRank())) {
         return nextRank;
       }
     }
diff --git a/src/main/java/sh/okx/rankup/Rankup.java b/src/main/java/sh/okx/rankup/Rankup.java
index 72d4075..3f43acf 100644
--- a/src/main/java/sh/okx/rankup/Rankup.java
+++ b/src/main/java/sh/okx/rankup/Rankup.java
@@ -13,7 +13,11 @@ import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.inventory.InventoryView;
 import org.bukkit.plugin.RegisteredServiceProvider;
 import org.bukkit.plugin.java.JavaPlugin;
-import sh.okx.rankup.commands.*;
+import sh.okx.rankup.commands.InfoCommand;
+import sh.okx.rankup.commands.PrestigeCommand;
+import sh.okx.rankup.commands.PrestigesCommand;
+import sh.okx.rankup.commands.RanksCommand;
+import sh.okx.rankup.commands.RankupCommand;
 import sh.okx.rankup.gui.Gui;
 import sh.okx.rankup.gui.GuiListener;
 import sh.okx.rankup.messages.EmptyMessageBuilder;
@@ -29,8 +33,11 @@ import sh.okx.rankup.requirements.Requirement;
 import sh.okx.rankup.requirements.RequirementRegistry;
 import sh.okx.rankup.requirements.requirement.*;
 import sh.okx.rankup.requirements.requirement.XpLevelRequirement;
-import sh.okx.rankup.requirements.requirement.advancedachievements.*;
-import sh.okx.rankup.requirements.requirement.mcmmo.*;
+import sh.okx.rankup.requirements.requirement.advancedachievements.AdvancedAchievementsAchievementRequirement;
+import sh.okx.rankup.requirements.requirement.advancedachievements.AdvancedAchievementsTotalRequirement;
+import sh.okx.rankup.requirements.requirement.mcmmo.McMMOPowerLevelRequirement;
+import sh.okx.rankup.requirements.requirement.mcmmo.McMMOSkillRequirement;
+import sh.okx.rankup.requirements.requirement.mcmmo.McMMOSkillUtil;
 
 import java.io.File;
 import java.text.DecimalFormat;
@@ -125,7 +132,7 @@ public class Rankup extends JavaPlugin {
 
 
 
-    if (config.getInt("version") < 3) {
+    if (config.getInt("version") < 4) {
       getLogger().severe("You are using an outdated config!");
       getLogger().severe("This means that some things might not work!");
       getLogger().severe("To update, please rename ALL your config files (or the folder they are in),");
@@ -183,7 +190,7 @@ public class Rankup extends JavaPlugin {
 
   private void saveLocales() {
     saveLocale("en");
-	saveLocale("pt-br");
+    saveLocale("pt-br");
   }
 
   private void saveLocale(String locale) {
@@ -255,8 +262,7 @@ public class Rankup extends JavaPlugin {
   }
 
   public MessageBuilder getMessage(Rank rank, Message message) {
-    ConfigurationSection messages = (rank instanceof Prestige ? prestiges : rankups).getConfig()
-        .getConfigurationSection(rank.getRank());
+    ConfigurationSection messages = rank.getSection();
     if (messages == null || !messages.isSet(message.getName())) {
       messages = this.messages;
     }
@@ -277,7 +283,7 @@ public class Rankup extends JavaPlugin {
         long secondsLeft = (long) Math.ceil(timeLeft / 1000f);
         getMessage(rank, secondsLeft > 1 ? Message.COOLDOWN_PLURAL : Message.COOLDOWN_SINGULAR)
             .failIfEmpty()
-            .replaceRanks(player, rank)
+            .replaceRanks(player, rank.getRank())
             .replaceFromTo(rank)
             .replace(Variable.SECONDS, cooldownSeconds)
             .replace(Variable.SECONDS_LEFT, secondsLeft)
@@ -302,23 +308,23 @@ public class Rankup extends JavaPlugin {
     }
 
     Rank oldRank = rankups.getByPlayer(player);
-    Rank rank = rankups.next(oldRank);
+    String next = oldRank.getNext();
 
     oldRank.applyRequirements(player);
 
     permissions.playerRemoveGroup(null, player, oldRank.getRank());
-    permissions.playerAddGroup(null, player, rank.getRank());
+    permissions.playerAddGroup(null, player, next);
 
     getMessage(oldRank, Message.SUCCESS_PUBLIC)
         .failIfEmpty()
-        .replaceRanks(player, oldRank, rank)
+        .replaceRanks(player, oldRank, next)
         .broadcast();
     getMessage(oldRank, Message.SUCCESS_PRIVATE)
         .failIfEmpty()
-        .replaceRanks(player, oldRank, rank)
+        .replaceRanks(player, oldRank, next)
         .send(player);
 
-    oldRank.runCommands(player, rank);
+    oldRank.runCommands(player, next);
     applyCooldown(player);
   }
 
@@ -335,23 +341,22 @@ public class Rankup extends JavaPlugin {
    */
   public boolean checkRankup(Player player, boolean message) {
     Rank rank = rankups.getByPlayer(player);
-    if (rank == null) { // check if in ladder
+    if (rankups.isLast(permissions, player)) {
+      getMessage(prestiges == null ? Message.NO_RANKUP : prestiges.getByPlayer(player).isLast() ? Message.NO_RANKUP : Message.MUST_PRESTIGE)
+          .failIf(!message)
+          .replaceRanks(player, rankups.getLast())
+          .send(player);
+      return false;
+    } else if (rank == null) { // check if in ladder
       getMessage(Message.NOT_IN_LADDER)
           .failIf(!message)
           .replace(Variable.PLAYER, player.getName())
           .send(player);
       return false;
-    } else if (rank.isLast()) { // check if they are at the highest rank
-      getMessage(rank, prestiges == null ? Message.NO_RANKUP : prestiges.getByPlayer(player).isLast() ? Message.NO_RANKUP : Message.MUST_PRESTIGE)
-          .failIf(!message)
-          .replaceRanks(player, rank)
-          .send(player);
-      return false;
     } else if (!rank.hasRequirements(player)) { // check if they can afford it
       if (message) {
         replaceMoneyRequirements(getMessage(rank, Message.REQUIREMENTS_NOT_MET)
-            .failIf(!message)
-            .replaceRanks(player, rank, rankups.next(rank)), player, rank)
+            .replaceRanks(player, rank, rank.getNext()), player, rank)
             .send(player);
       }
       return false;
@@ -381,16 +386,16 @@ public class Rankup extends JavaPlugin {
 
     getMessage(oldPrestige, Message.PRESTIGE_SUCCESS_PUBLIC)
         .failIfEmpty()
-        .replaceRanks(player, oldPrestige, prestige)
+        .replaceRanks(player, oldPrestige, prestige.getRank())
         .replaceFromTo(oldPrestige)
         .broadcast();
     getMessage(oldPrestige, Message.PRESTIGE_SUCCESS_PRIVATE)
         .failIfEmpty()
-        .replaceRanks(player, oldPrestige, prestige)
+        .replaceRanks(player, oldPrestige, prestige.getRank())
         .replaceFromTo(oldPrestige)
         .send(player);
 
-    oldPrestige.runCommands(player, prestige);
+    oldPrestige.runCommands(player, prestige.getRank());
     applyCooldown(player);
   }
 
@@ -400,23 +405,24 @@ public class Rankup extends JavaPlugin {
 
   public boolean checkPrestige(Player player, boolean message) {
     Prestige prestige = prestiges.getByPlayer(player);
+    System.out.println(prestige.getNext() + " ..");
     if (!prestige.isIn(player)) { // check if in ladder
       getMessage(Message.NOT_HIGH_ENOUGH)
           .failIf(!message)
           .replace(Variable.PLAYER, player.getName())
           .send(player);
       return false;
-    } else if (prestige.isLast()) { // check if they are at the highest rank
+    } else if (prestiges.getByName(prestige.getNext()) == null) { // check if they are at the highest rank
       getMessage(prestige, Message.PRESTIGE_NO_PRESTIGE)
           .failIf(!message)
-          .replaceRanks(player, prestige)
+          .replaceRanks(player, prestige.getRank())
           .replaceFromTo(prestige)
           .send(player);
       return false;
     } else if (!prestige.hasRequirements(player)) { // check if they can afford it
       replaceMoneyRequirements(getMessage(prestige, Message.PRESTIGE_REQUIREMENTS_NOT_MET)
           .failIf(!message)
-          .replaceRanks(player, prestige, prestiges.next(prestige)), player, prestige)
+          .replaceRanks(player, prestige, prestiges.next(prestige).getRank()), player, prestige)
           .replaceFromTo(prestige)
           .send(player);
       return false;
@@ -476,9 +482,9 @@ public class Rankup extends JavaPlugin {
     builder.replace(variable + " " + requirement.getName(), value.get());
   }
 
-  public MessageBuilder getMessage(CommandSender player, Message message, Rank oldRank, Rank rank) {
+  public MessageBuilder getMessage(CommandSender player, Message message, Rank oldRank, String rankName) {
     return replaceMoneyRequirements(getMessage(oldRank, message)
-        .replaceRanks(player, oldRank, rank), player, oldRank)
+        .replaceRanks(player, oldRank, rankName), player, oldRank)
         .replaceFromTo(oldRank);
   }
 
@@ -491,7 +497,7 @@ public class Rankup extends JavaPlugin {
     } else {
       builder = getMessage(rank, type)
           .failIfEmpty()
-          .replaceRanks(sender, rank)
+          .replaceRanks(sender, rank.getRank())
           .replaceFromTo(rank);
     }
     builder.send(sender);
diff --git a/src/main/java/sh/okx/rankup/commands/PrestigeCommand.java b/src/main/java/sh/okx/rankup/commands/PrestigeCommand.java
index c827ee6..5065680 100644
--- a/src/main/java/sh/okx/rankup/commands/PrestigeCommand.java
+++ b/src/main/java/sh/okx/rankup/commands/PrestigeCommand.java
@@ -48,12 +48,12 @@ public class PrestigeCommand implements CommandExecutor {
       case "text":
         confirming.put(player, System.currentTimeMillis());
         plugin.replaceMoneyRequirements(plugin.getMessage(prestige, Message.PRESTIGE_CONFIRMATION)
-            .replaceRanks(player, prestige, prestiges.next(prestige)), player, prestige)
+            .replaceRanks(player, prestige, prestiges.next(prestige).getRank()), player, prestige)
             .replaceFromTo(prestige)
             .send(player);
         break;
       case "gui":
-        Gui.of(player, prestige, prestiges.next(prestige), plugin).open(player);
+        Gui.of(player, prestige, prestige.getNext(), plugin).open(player);
         break;
       case "none":
         plugin.prestige(player);
diff --git a/src/main/java/sh/okx/rankup/commands/PrestigesCommand.java b/src/main/java/sh/okx/rankup/commands/PrestigesCommand.java
index 48f0e27..492919d 100644
--- a/src/main/java/sh/okx/rankup/commands/PrestigesCommand.java
+++ b/src/main/java/sh/okx/rankup/commands/PrestigesCommand.java
@@ -29,12 +29,12 @@ public class PrestigesCommand implements CommandExecutor {
     Prestige next;
     while ((next = prestiges.next(prestige)) != null) {
       if (prestige.equals(playerRank)) {
-        plugin.getMessage(sender, Message.PRESTIGES_CURRENT, prestige, next)
+        plugin.getMessage(sender, Message.PRESTIGES_CURRENT, prestige, next.getRank())
             .replaceFirstPrestige(prestige, prestiges, prestige.getFrom())
             .send(sender);
         message = Message.PRESTIGES_INCOMPLETE;
       } else {
-        plugin.getMessage(sender, message, prestige, next)
+        plugin.getMessage(sender, message, prestige, next.getRank())
             .replaceFirstPrestige(prestige, prestiges, prestige.getFrom())
             .send(sender);
       }
diff --git a/src/main/java/sh/okx/rankup/commands/RanksCommand.java b/src/main/java/sh/okx/rankup/commands/RanksCommand.java
index 74d1873..ca7c5ea 100644
--- a/src/main/java/sh/okx/rankup/commands/RanksCommand.java
+++ b/src/main/java/sh/okx/rankup/commands/RanksCommand.java
@@ -26,15 +26,15 @@ public class RanksCommand implements CommandExecutor {
 
     Message message = playerRank == null ? Message.RANKS_INCOMPLETE : Message.RANKS_COMPLETE;
     Rank rank = rankups.getFirst();
-    Rank next;
-    while ((next = rankups.next(rank)) != null) {
+    while (rank != null) {
+      String name = rank.getNext();
       if (rank.equals(playerRank)) {
-        plugin.getMessage(sender, Message.RANKS_CURRENT, rank, next).send(sender);
+        plugin.getMessage(sender, Message.RANKS_CURRENT, rank, name).send(sender);
         message = Message.RANKS_INCOMPLETE;
       } else {
-        plugin.getMessage(sender, message, rank, next).send(sender);
+        plugin.getMessage(sender, message, rank, name).send(sender);
       }
-      rank = next;
+      rank = rankups.getByName(name);
     }
     plugin.sendHeaderFooter(sender, playerRank, Message.RANKS_FOOTER);
     return true;
diff --git a/src/main/java/sh/okx/rankup/commands/RankupCommand.java b/src/main/java/sh/okx/rankup/commands/RankupCommand.java
index 3c251b8..0103e63 100644
--- a/src/main/java/sh/okx/rankup/commands/RankupCommand.java
+++ b/src/main/java/sh/okx/rankup/commands/RankupCommand.java
@@ -35,13 +35,14 @@ public class RankupCommand implements CommandExecutor {
     if (!plugin.checkRankup(player)) {
       return true;
     }
-    Rank next = rankups.next(rank);
+    /*Rank next = rankups.next(rank);
     if (next == null) {
       plugin.getLogger().severe("Rankup from " + rank.getRank() + " to " + rank.getNext() +
           " is defined but " + rank.getNext() + " does not exist.");
       plugin.getMessage(Message.INVALID_RANKUP).failIfEmpty().send(player);
       return true;
-    }
+    }*/
+    String next = rank.getNext();
 
     FileConfiguration config = plugin.getConfig();
     String confirmationType = config.getString("confirmation-type").toLowerCase();
diff --git a/src/main/java/sh/okx/rankup/gui/Gui.java b/src/main/java/sh/okx/rankup/gui/Gui.java
index 51c7d69..55ca1da 100644
--- a/src/main/java/sh/okx/rankup/gui/Gui.java
+++ b/src/main/java/sh/okx/rankup/gui/Gui.java
@@ -19,6 +19,7 @@ import sh.okx.rankup.prestige.Prestige;
 import sh.okx.rankup.ranks.Rank;
 
 import java.util.Arrays;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 @NoArgsConstructor(access = AccessLevel.PRIVATE)
@@ -32,7 +33,7 @@ public class Gui implements InventoryHolder {
   @Getter
   private boolean prestige;
 
-  public static Gui of(Player player, Rank oldRank, Rank rank, Rankup plugin) {
+  public static Gui of(Player player, Rank oldRank, String rank, Rankup plugin) {
     ConfigurationSection config = plugin.getConfig().getConfigurationSection("gui");
     ItemStack[] items = new ItemStack[config.getInt("rows") * 9];
 
@@ -53,14 +54,14 @@ public class Gui implements InventoryHolder {
         plugin.replaceMoneyRequirements(
             plugin.getMessage(oldRank, gui.prestige ? Message.PRESTIGE_TITLE : Message.TITLE)
                 .replaceRanks(player, oldRank, rank)
-                .replaceFromTo(oldRank), player, rank).toString());
+                .replaceFromTo(oldRank), player, oldRank).toString());
     inventory.setContents(items);
     gui.inventory = inventory;
     return gui;
   }
 
   @SuppressWarnings("deprecation")
-  private static ItemStack getItem(Rankup plugin, String name, Player player, Rank oldRank, Rank rank) {
+  private static ItemStack getItem(Rankup plugin, String name, Player player, Rank oldRank, String rank) {
     ConfigurationSection section = plugin.getConfig().getConfigurationSection("gui").getConfigurationSection(name);
 
     String materialName = section.getString("material").toUpperCase();
@@ -99,13 +100,14 @@ public class Gui implements InventoryHolder {
     return item;
   }
 
-  private static String format(Rankup plugin, String message, Player player, Rank oldRank, Rank rank) {
+  private static String format(Rankup plugin, String message, Player player, Rank oldRank, String rank) {
     return plugin.replaceMoneyRequirements(new MessageBuilder(ChatColor.translateAlternateColorCodes('&', message))
         .replaceRanks(player, oldRank, rank), player, oldRank)
         .toString();
   }
 
   private static void addItem(ItemStack[] items, ConfigurationSection section, ItemStack item) {
+    Objects.requireNonNull(section, "GUI configuration section not found");
     if (section.getName().equalsIgnoreCase("fill")) {
       for (int i = 0; i < items.length; i++) {
         if (items[i] == null) {
diff --git a/src/main/java/sh/okx/rankup/messages/MessageBuilder.java b/src/main/java/sh/okx/rankup/messages/MessageBuilder.java
index f109b29..7918f73 100644
--- a/src/main/java/sh/okx/rankup/messages/MessageBuilder.java
+++ b/src/main/java/sh/okx/rankup/messages/MessageBuilder.java
@@ -50,26 +50,26 @@ public class MessageBuilder {
     return this;
   }
 
-  public MessageBuilder replaceRanks(CommandSender player, Rank rank) {
+  public MessageBuilder replaceRanks(CommandSender player, String rankName) {
     replace(Variable.PLAYER, player.getName());
-    replaceRanks(rank);
+    replaceRanks(rankName);
     return this;
   }
 
-  public MessageBuilder replaceRanks(CommandSender player, Rank oldRank, Rank rank) {
+  public MessageBuilder replaceRanks(CommandSender player, Rank oldRank, String rankName) {
     replace(Variable.PLAYER, player.getName());
-    replaceRanks(oldRank, rank);
+    replaceRanks(oldRank, rankName);
     return this;
   }
 
-  public MessageBuilder replaceRanks(Rank rank) {
-    replace(Variable.RANK, rank.getRank());
-    replace(Variable.RANK_NAME, rank.getRank());
+  public MessageBuilder replaceRanks(String rankName) {
+    replace(Variable.RANK, rankName);
+    replace(Variable.RANK_NAME, rankName);
     return this;
   }
 
-  public MessageBuilder replaceRanks(Rank oldRank, Rank rank) {
-    replaceRanks(rank);
+  public MessageBuilder replaceRanks(Rank oldRank, String rankName) {
+    replaceRanks(rankName);
     replace(Variable.OLD_RANK, oldRank.getRank());
     replace(Variable.OLD_RANK_NAME, oldRank.getRank());
     return this;
@@ -104,7 +104,7 @@ public class MessageBuilder {
 
   public void send(CommandSender sender) {
     String msg = message;
-    if (sender instanceof Player) {
+    if (sender instanceof Player && Bukkit.getPluginManager().isPluginEnabled("PlaceholderAPI")) {
       msg = PlaceholderAPI.setPlaceholders((Player) sender, msg);
     }
     sender.sendMessage(msg);
diff --git a/src/main/java/sh/okx/rankup/placeholders/Placeholders.java b/src/main/java/sh/okx/rankup/placeholders/Placeholders.java
index 3e1d9de..31f04be 100644
--- a/src/main/java/sh/okx/rankup/placeholders/Placeholders.java
+++ b/src/main/java/sh/okx/rankup/placeholders/Placeholders.java
@@ -3,6 +3,7 @@ package sh.okx.rankup.placeholders;
 import lombok.Getter;
 import me.clip.placeholderapi.PlaceholderAPI;
 import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
 import sh.okx.rankup.Rankup;
 
 import java.text.DecimalFormat;
diff --git a/src/main/java/sh/okx/rankup/prestige/Prestige.java b/src/main/java/sh/okx/rankup/prestige/Prestige.java
index 18f0957..cc60d99 100644
--- a/src/main/java/sh/okx/rankup/prestige/Prestige.java
+++ b/src/main/java/sh/okx/rankup/prestige/Prestige.java
@@ -20,18 +20,17 @@ public class Prestige extends Rank {
   @Getter
   private final String to;
 
-  private Prestige(Rankup plugin, String next, String rank, Set<Requirement> requirements, List<String> commands, String from, String to) {
-    super(plugin, next, rank, requirements, commands);
+  private Prestige(ConfigurationSection section, Rankup plugin, String next, String rank, Set<Requirement> requirements, List<String> commands, String from, String to) {
+    super(section, plugin, next, rank, requirements, commands);
     this.from = from;
     this.to = to;
   }
 
   public static Prestige deserialize(Rankup plugin, ConfigurationSection section) {
-    ConfigurationSection requirementsSection = section.getConfigurationSection("requirements");
-    Validate.notNull(requirementsSection, "No requirements defined for section " + section.getName());
-    Set<Requirement> requirements = plugin.getRequirementRegistry().getRequirements(requirementsSection);
+    List<String> requirementsList = section.getStringList("requirements");
+    Set<Requirement> requirements = plugin.getRequirementRegistry().getRequirements(requirementsList);
 
-    return new Prestige(plugin,
+    return new Prestige(section, plugin,
         section.getString("next"),
         section.getString("rank"),
         requirements,
@@ -39,4 +38,28 @@ public class Prestige extends Rank {
         section.getString("from"),
         section.getString("to"));
   }
+
+  @Override
+  public boolean isIn(Player player) {
+
+    String[] groups = plugin.getPermissions().getPlayerGroups(null, player);
+    for (String group : groups) {
+      if (group.equalsIgnoreCase(from) && rank == null) {
+        for (Prestige prestige : plugin.getPrestiges().getOrderedList()) {
+          if (prestige != this && prestige.isIn(player)) {
+            return false;
+          }
+        }
+        return true;
+      } else if(group.equalsIgnoreCase(rank)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @Override
+  public boolean isLast() {
+    return plugin.getPrestiges().getByName(next) == null;
+  }
 }
diff --git a/src/main/java/sh/okx/rankup/prestige/Prestiges.java b/src/main/java/sh/okx/rankup/prestige/Prestiges.java
index 31977aa..2e9cd89 100644
--- a/src/main/java/sh/okx/rankup/prestige/Prestiges.java
+++ b/src/main/java/sh/okx/rankup/prestige/Prestiges.java
@@ -11,12 +11,12 @@ public class Prestiges extends RankList<Prestige> {
   }
 
   @Override
-  public Prestige getByPlayer(Player player) {
-    Prestige prestige = super.getByPlayer(player);
-    if (prestige == null) {
-      return getFirst();
-    } else {
-      return prestige;
+  public Prestige getFirst() {
+    for (Prestige prestige : ranks) {
+      if (prestige.getRank() == null) {
+        return prestige;
+      }
     }
+    throw new IllegalStateException("No prestige found for first prestige (first prestige is counted as a prestige without a rank set)");
   }
 }
diff --git a/src/main/java/sh/okx/rankup/ranks/Rank.java b/src/main/java/sh/okx/rankup/ranks/Rank.java
index 22f823f..2b8d438 100644
--- a/src/main/java/sh/okx/rankup/ranks/Rank.java
+++ b/src/main/java/sh/okx/rankup/ranks/Rank.java
@@ -22,6 +22,8 @@ import java.util.stream.Collectors;
 @EqualsAndHashCode
 @RequiredArgsConstructor(access = AccessLevel.PROTECTED)
 public class Rank {
+  @Getter
+  protected final ConfigurationSection section;
   protected final Rankup plugin;
   @Getter
   protected final String next;
@@ -32,11 +34,11 @@ public class Rank {
   protected final List<String> commands;
 
   public static Rank deserialize(Rankup plugin, ConfigurationSection section) {
-    ConfigurationSection requirementsSection = section.getConfigurationSection("requirements");
-    Validate.notNull(requirementsSection, "No requirements defined for section " + section.getName());
-    Set<Requirement> requirements = plugin.getRequirementRegistry().getRequirements(requirementsSection);
+    List<String> requirementsList = section.getStringList("requirements");
+    Validate.notEmpty(requirementsList, "No requirements defined for rankup section " + section.getName());
+    Set<Requirement> requirements = plugin.getRequirementRegistry().getRequirements(requirementsList);
 
-    return new Rank(plugin,
+    return new Rank(section, plugin,
         section.getString("next"),
         section.getString("rank"),
         requirements,
@@ -83,10 +85,10 @@ public class Rank {
     }
   }
 
-  public void runCommands(Player player, Rank nextRank) {
+  public void runCommands(Player player, String next) {
     for (String command : commands) {
       Bukkit.dispatchCommand(Bukkit.getConsoleSender(),
-          new MessageBuilder(command).replaceRanks(player, this, nextRank).toString());
+          new MessageBuilder(command).replaceRanks(player, this, next).toString());
     }
   }
 }
diff --git a/src/main/java/sh/okx/rankup/requirements/RequirementRegistry.java b/src/main/java/sh/okx/rankup/requirements/RequirementRegistry.java
index 2c092f1..0bf7745 100644
--- a/src/main/java/sh/okx/rankup/requirements/RequirementRegistry.java
+++ b/src/main/java/sh/okx/rankup/requirements/RequirementRegistry.java
@@ -1,9 +1,8 @@
 package sh.okx.rankup.requirements;
 
-import org.bukkit.configuration.ConfigurationSection;
-
 import java.util.HashSet;
-import java.util.Map;
+import java.util.List;
+import java.util.Objects;
 import java.util.Set;
 
 public class RequirementRegistry {
@@ -24,18 +23,16 @@ public class RequirementRegistry {
     return null;
   }
 
-  public Set<Requirement> getRequirements(ConfigurationSection section) {
+  public Set<Requirement> getRequirements(List<String> list) {
     Set<Requirement> requirements = new HashSet<>();
 
-    for (Map.Entry<String, Object> entry : section.getValues(false).entrySet()) {
-      String name = entry.getKey();
-      String value = String.valueOf(entry.getValue());
+    for (String req : list) {
+      String[] parts = req.split(" ", 2);
+      String name = parts[0];
+      String value = parts[1];
       Requirement requirement = newRequirement(name, value);
-      if (requirement == null) {
-        System.err.println("Unknown requirement: " + name);
-      } else {
-        requirements.add(requirement);
-      }
+      Objects.requireNonNull(requirement, "Unknown requirement: " + name);
+      requirements.add(requirement);
     }
     return requirements;
   }
diff --git a/src/main/java/sh/okx/rankup/requirements/requirement/mcmmo/McMMOSkillUtil.java b/src/main/java/sh/okx/rankup/requirements/requirement/mcmmo/McMMOSkillUtil.java
index 78237af..e51720d 100644
--- a/src/main/java/sh/okx/rankup/requirements/requirement/mcmmo/McMMOSkillUtil.java
+++ b/src/main/java/sh/okx/rankup/requirements/requirement/mcmmo/McMMOSkillUtil.java
@@ -9,7 +9,7 @@ import java.lang.reflect.Method;
 
 /**
  * Because mcMMO like changing the name of their skill types.
- * Singleton (not thread safe!) class to access different mcMMO versions.
+ * Singleton class to access different mcMMO versions.
  */
 public class McMMOSkillUtil {
   private static McMMOSkillUtil instance;
@@ -31,19 +31,19 @@ public class McMMOSkillUtil {
         try {
           skillTypeClass = Class.forName(pckg + "SkillType");
         } catch (ClassNotFoundException e2) {
-          throw new RuntimeException("mcMMO Skill Type class not found");
+          throw new UnsupportedOperationException("mcMMO Skill Type class not found");
         }
       }
     }
     try {
       values = skillTypeClass.getMethod("values");
     } catch (NoSuchMethodException e) {
-      throw new RuntimeException("mcMMO " + skillTypeClass + ".values() not found");
+      throw new UnsupportedOperationException("mcMMO " + skillTypeClass + ".values() not found");
     }
     try {
       valueOf = skillTypeClass.getMethod("valueOf", String.class);
     } catch (NoSuchMethodException e) {
-      throw new RuntimeException("mcMMO" + skillTypeClass + ".valueOf(String) not found");
+      throw new UnsupportedOperationException("mcMMO" + skillTypeClass + ".valueOf(String) not found");
     }
 
     /*try {
@@ -54,7 +54,7 @@ public class McMMOSkillUtil {
     try {
       getSkillLevel = McMMOPlayer.class.getMethod("getSkillLevel", skillTypeClass);
     } catch (NoSuchMethodException e) {
-      throw new RuntimeException("mcMMO UserManager.getSkillLevel(" + skillTypeClass + ") not found");
+      throw new UnsupportedOperationException("mcMMO UserManager.getSkillLevel(" + skillTypeClass + ") not found");
     }
   }
 
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index 6b37a5c..0732139 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -1,5 +1,5 @@
 # this is used for letting you know that you need to update/change your config file
-version: 3
+version: 4
 
 # the locale to use for messages
 # all messages can be customised but this allows you to
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 677b258..58a28d5 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -1,5 +1,5 @@
 name: Rankup
-version: 3.4.2
+version: 3.5-beta
 main: sh.okx.rankup.Rankup
 author: Okx
 depend: [Vault]
diff --git a/src/main/resources/rankups.yml b/src/main/resources/rankups.yml
index f726387..00d3db3 100644
--- a/src/main/resources/rankups.yml
+++ b/src/main/resources/rankups.yml
@@ -14,7 +14,7 @@ Aexample:
   requirements:
     - 'money 1000'
   # the console will run these commands when a player ranks up
-  # the groups are automatically changed with vault
+  # nb: groups are automatically changed with vault
   #commands:
   # this will run when a player ranks up from A to B.
   #- 'say {PLAYER} well done for ranking up from {OLD_RANK} to {RANK}!'
@@ -30,8 +30,7 @@ Cexample:
     - 'money 5000'
     - 'xp-level 2'
   # you can have a custom messages for each rank
-  # you can use this to list the requirements needed.
-  # the paths of these messages are the exact same as in the messages for your locale
+  # the paths of these messages are the same as in the messages for your locale
   rankup:
     requirements-not-met: '&cYou need 5000 money and 2 levels of XP to rankup to D.'
     list: