Implement highest damage AI, further work on AI runner, random fixes

PkmnLib.Dynamic/Models/Pokemon.cs

@@ -936,6 +936,8 @@ public class PokemonImpl : ScriptSource, IPokemon
         AbilityScript.Clear();
     }
 
+    private (IAbility, AbilityIndex)? _abilityCache;
+
     /// <inheritdoc />
     public IAbility? ActiveAbility
     {
@@ -945,9 +947,12 @@ public class PokemonImpl : ScriptSource, IPokemon
                 return null;
             if (OverrideAbility != null)
                 return OverrideAbility;
+            if (_abilityCache is not null && _abilityCache.Value.Item2 == AbilityIndex)
+                return _abilityCache.Value.Item1;
             var ability = Form.GetAbility(AbilityIndex);
             if (!Library.StaticLibrary.Abilities.TryGet(ability, out var abilityObj))
                 throw new KeyNotFoundException($"Ability {ability} not found.");
+            _abilityCache = (abilityObj, AbilityIndex);
             return abilityObj;
         }
     }