Last couple abilities

Plugins/PkmnLib.Plugin.Gen7/Scripts/Abilities/WaterCompaction.cs

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+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Water Compaction is an ability that sharply raises Defense when hit by a Water-type move.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Water_Compaction_(Ability)">Bulbapedia - Water Compaction</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "water_compaction")]
+public class WaterCompaction : Script
+{
+    /// <inheritdoc />
+    public override void OnIncomingHit(IExecutingMove move, IPokemon target, byte hit)
+    {
+        if (move.GetHitData(target, hit).Type?.Name != "water")
+            return;
+        target.BattleData?.Battle.EventHook.Invoke(new AbilityTriggerEvent(target));
+        target.ChangeStatBoost(Statistic.Defense, 2, true, false);
+    }
+}