Implements a bunch more moves

Plugins/PkmnLib.Plugin.Gen7/Scripts/Battle/TrickRoomEffect.cs

@@ -0,0 +1,21 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Battle;
+
+[Script(ScriptCategory.Battle, "trick_room")]
+public class TrickRoomEffect : Script
+{
+    private int _turnsLeft = 5;
+
+    /// <inheritdoc />
+    public override void ChangeSpeed(ITurnChoice choice, ref uint speed)
+    {
+        speed = uint.MaxValue - speed;
+    }
+
+    /// <inheritdoc />
+    public override void OnEndTurn(IBattle battle)
+    {
+        _turnsLeft--;
+        if (_turnsLeft <= 0)
+            RemoveSelf();
+    }
+}