diff --git a/src/com/massivecraft/massivecore/command/MassiveCommandSet.java b/src/com/massivecraft/massivecore/command/MassiveCommandSet.java
new file mode 100644
index 00000000..a183ad17
--- /dev/null
+++ b/src/com/massivecraft/massivecore/command/MassiveCommandSet.java
@@ -0,0 +1,120 @@
+package com.massivecraft.massivecore.command;
+
+import java.util.List;
+
+import com.massivecraft.massivecore.MassiveException;
+import com.massivecraft.massivecore.command.type.Type;
+import com.massivecraft.massivecore.command.type.sender.TypeSenderId;
+import com.massivecraft.massivecore.mixin.MixinDisplayName;
+import com.massivecraft.massivecore.mixin.MixinMessage;
+import com.massivecraft.massivecore.util.IdUtil;
+import com.massivecraft.massivecore.util.PermissionUtil;
+import com.massivecraft.massivecore.util.Txt;
+
+public abstract class MassiveCommandSet<T> extends MassiveCommand
+{
+	// -------------------------------------------- //
+	// FIELD
+	// -------------------------------------------- //
+
+	private final Type<T> type;
+	public Type<T> getType() { return this.type; }
+
+	private String permSetOther;
+	public String getPermSetOther() { return permSetOther; }
+	public void setPermSetOther(String permSetOther) { this.permSetOther = permSetOther; }
+	public boolean hasPermSetOther() { return this.getPermSetOther() != null; }
+
+	// -------------------------------------------- //
+	// CONSTRUCT
+	// -------------------------------------------- //
+
+	public MassiveCommandSet(Type<T> type)
+	{
+		this(type, TypeSenderId.get());
+	}
+
+	public MassiveCommandSet(Type<T> type, Type<String> typeSenderId)
+	{
+		this.type = type;
+
+		// Parameters
+		this.addParameter(type);
+		this.addParameter(typeSenderId, "player", "you");
+	}
+	
+	// -------------------------------------------- //
+	// VALUE
+	// -------------------------------------------- //
+	
+	public abstract T getValue(String senderId) throws MassiveException;
+	
+	public abstract void setValue(T value, String senderId) throws MassiveException;
+	
+	// -------------------------------------------- //
+	// NAME
+	// -------------------------------------------- //
+	
+	public String getName()
+	{
+		List<String> aliases = this.getAliases();
+		return aliases.get(aliases.size() - 1);
+	}
+
+	public String getTargetDesc(String targetId, String watcherId)
+	{
+		if (targetId.equals(watcherId))
+		{
+			return Txt.parse("<i>Your <h>%s", this.getName());
+		}
+		else
+		{
+			return Txt.parse("<h>%s <i>of %s", Txt.upperCaseFirst(this.getName()), MixinDisplayName.get().getDisplayName(targetId, watcherId));
+		}
+	}
+
+	// -------------------------------------------- //
+	// OVERRIDE
+	// -------------------------------------------- //
+	
+	@Override
+	public void perform() throws MassiveException
+	{
+		// Args
+		T after = this.readArg();
+
+		String senderId = IdUtil.getId(sender);
+		String targetId = this.readArg(senderId);
+		boolean other = !targetId.equals(senderId);
+
+		// Check other
+		if (other && this.hasPermSetOther())
+		{
+			if (!PermissionUtil.hasPermission(sender, this.getPermSetOther(), true)) return;
+		}
+
+
+		T before = this.getValue(targetId);
+		String afterDesc = this.getType().getVisual(after, sender);
+		String targetDesc = this.getTargetDesc(targetId, senderId);
+		
+		// NoChange
+		if (after == before)
+		{
+			throw new MassiveException().addMsg("%s<i> is already <h>%s<i>.", targetDesc, afterDesc);
+		}
+		
+		// Apply
+		this.setValue(after, targetId);
+		
+		// Inform
+		msg("%s<i> is now <h>%s<i>.", targetDesc, afterDesc);
+
+		// Inform target
+		if (!targetId.equals(senderId))
+		{
+			MixinMessage.get().msgOne(targetId, "%s<i> is now <h>%s<i>.", getTargetDesc(targetId, targetId), afterDesc);
+		}
+	}
+
+}