diff --git a/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/CustomListMode.java b/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/CustomListMode.java
new file mode 100644
index 0000000..e8f7d2f
--- /dev/null
+++ b/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/CustomListMode.java
@@ -0,0 +1,28 @@
+package net.nuggetmc.tplus.api.agent.legacyagent;
+
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
+public enum CustomListMode {
+    HOSTILE,
+    RAIDER,
+    MOB,
+    CUSTOM;
+
+    public static boolean isValid(String name) {
+        return from(name) != null;
+    }
+
+    public static CustomListMode from(String name) {
+        for (CustomListMode mode : values()) {
+            if (mode.name().equalsIgnoreCase(name)) {
+                return mode;
+            }
+        }
+        return null;
+    }
+
+    public static String listModes() {
+        return Arrays.stream(values()).map(e -> e.name().toLowerCase()).collect(Collectors.joining("|"));
+    }
+}
diff --git a/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/LegacyAgent.java b/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/LegacyAgent.java
index edc19a3..687f646 100644
--- a/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/LegacyAgent.java
+++ b/TerminatorPlus-API/src/main/java/net/nuggetmc/tplus/api/agent/legacyagent/LegacyAgent.java
@@ -58,7 +58,7 @@ public class LegacyAgent extends Agent {
     private double regionWeightZ;
 
     public static final Set<EntityType> CUSTOM_MOB_LIST = new HashSet<>();
-    public static String customListMode = "custom";
+    public static CustomListMode customListMode = CustomListMode.CUSTOM;
 
     public LegacyAgent(BotManager manager, Plugin plugin) {
         super(manager, plugin);
@@ -1462,7 +1462,7 @@ public class LegacyAgent extends Agent {
 
             case NEAREST_HOSTILE: {
                 for (LivingEntity entity : bot.getBukkitEntity().getWorld().getLivingEntities()) {
-                    if ((entity instanceof Monster || (customListMode.equals("hostile") && CUSTOM_MOB_LIST.contains(entity.getType()))) && validateCloserEntity(entity, loc, result)) {
+                    if ((entity instanceof Monster || (customListMode == CustomListMode.HOSTILE && CUSTOM_MOB_LIST.contains(entity.getType()))) && validateCloserEntity(entity, loc, result)) {
                         result = entity;
                     }
                 }
@@ -1473,7 +1473,7 @@ public class LegacyAgent extends Agent {
             case NEAREST_RAIDER: {
                 for (LivingEntity entity : bot.getBukkitEntity().getWorld().getLivingEntities()) {
                     boolean raider = entity instanceof Raider || (entity instanceof Vex vex && vex.getSummoner() instanceof Raider);
-                    if ((raider || (customListMode.equals("raider") && CUSTOM_MOB_LIST.contains(entity.getType()))) && validateCloserEntity(entity, loc, result)) {
+                    if ((raider || (customListMode == CustomListMode.RAIDER && CUSTOM_MOB_LIST.contains(entity.getType()))) && validateCloserEntity(entity, loc, result)) {
                         result = entity;
                     }
                 }
@@ -1483,7 +1483,7 @@ public class LegacyAgent extends Agent {
 
             case NEAREST_MOB: {
                 for (LivingEntity entity : bot.getBukkitEntity().getWorld().getLivingEntities()) {
-                    if ((entity instanceof Mob || (customListMode.equals("mob") && CUSTOM_MOB_LIST.contains(entity.getType()))) && validateCloserEntity(entity, loc, result)) {
+                    if ((entity instanceof Mob || (customListMode == CustomListMode.MOB && CUSTOM_MOB_LIST.contains(entity.getType()))) && validateCloserEntity(entity, loc, result)) {
                         result = entity;
                     }
                 }
@@ -1539,7 +1539,7 @@ public class LegacyAgent extends Agent {
 
             case CUSTOM_LIST: {
                 for (LivingEntity entity : bot.getBukkitEntity().getWorld().getLivingEntities()) {
-                    if (customListMode.equals("custom") && CUSTOM_MOB_LIST.contains(entity.getType()) && validateCloserEntity(entity, loc, result)) {
+                    if (customListMode == CustomListMode.CUSTOM && CUSTOM_MOB_LIST.contains(entity.getType()) && validateCloserEntity(entity, loc, result)) {
                         result = entity;
                     }
                 }
diff --git a/TerminatorPlus-Plugin/src/main/java/net/nuggetmc/tplus/command/commands/BotEnvironmentCommand.java b/TerminatorPlus-Plugin/src/main/java/net/nuggetmc/tplus/command/commands/BotEnvironmentCommand.java
index 154ff15..3e538ea 100644
--- a/TerminatorPlus-Plugin/src/main/java/net/nuggetmc/tplus/command/commands/BotEnvironmentCommand.java
+++ b/TerminatorPlus-Plugin/src/main/java/net/nuggetmc/tplus/command/commands/BotEnvironmentCommand.java
@@ -10,6 +10,7 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
 
+import net.nuggetmc.tplus.api.agent.legacyagent.CustomListMode;
 import net.nuggetmc.tplus.api.agent.legacyagent.LegacyAgent;
 import net.nuggetmc.tplus.api.agent.legacyagent.LegacyMats;
 import net.nuggetmc.tplus.api.utils.ChatUtils;
@@ -265,13 +266,12 @@ public class BotEnvironmentCommand extends CommandInstance {
     public void mobListType(CommandSender sender, List<String> args) {
         if (args.isEmpty()) {
             sender.sendMessage("The custom mob list type is " + ChatColor.BLUE + LegacyAgent.customListMode + ChatColor.RESET + ".");
-        } else if (args.size() > 0 && (args.get(0).equals("hostile") || args.get(0).equals("raider")
-            || args.get(0).equals("mob") || args.get(0).equals("custom"))) {
-            LegacyAgent.customListMode = args.get(0);
+        } else if (args.size() > 0 && CustomListMode.isValid(args.get(0))) {
+            LegacyAgent.customListMode = CustomListMode.from(args.get(0));
             sender.sendMessage(
                     "Successfully set the custom mob list type to " + ChatColor.BLUE + args.get(0) + ChatColor.RESET + ".");
         } else
-            sender.sendMessage("Usage: " + ChatColor.YELLOW + "/botenvironment mobListType (hostile|raider|mob|custom)" + ChatColor.RESET);
+            sender.sendMessage("Usage: " + ChatColor.YELLOW + "/botenvironment mobListType (" + CustomListMode.listModes() + ")" + ChatColor.RESET);
     }
 
     @Autofill
@@ -290,10 +290,8 @@ public class BotEnvironmentCommand extends CommandInstance {
                     if (type != EntityType.UNKNOWN)
                         output.add(type.name());
             } else if (matches(args[0], "mobListType")) {
-                output.add("hostile");
-                output.add("raider");
-                output.add("mob");
-                output.add("custom");
+                for (CustomListMode mode : CustomListMode.values())
+                    output.add(mode.name().toLowerCase(Locale.ENGLISH));
             }
         }
         return output;