Bunch more moves, changes in how additional information for items works.

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/Memento.cs

@@ -0,0 +1,17 @@
+using PkmnLib.Static;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+[Script(ScriptCategory.Move, "memento")]
+public class Memento : Script
+{
+    /// <inheritdoc />
+    public override void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
+    {
+        var evtBatch = new EventBatchId();
+        target.ChangeStatBoost(Statistic.Attack, -2, false, evtBatch);
+        target.ChangeStatBoost(Statistic.SpecialAttack, -2, false, evtBatch);
+
+        move.User.Faint(DamageSource.Misc);
+    }
+}