Check win and loss states

Assets/Battle/CardsMonsters/QuickSwiftDeathMCard.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class QuickSwiftDeathMCard : MonsterCard
+{
+    public QuickSwiftDeathMCard(BattleParticipant owner)
+        : base(owner, MCardId.GolemFist, "Quick Swift Death", 0, CardType.Attack,
+            "Deals 100 damage to target. Target: nearest hero.") {
+    }
+
+    public override IEnumerator Use(IBattleEffectApplier effectApplier, MonsterViewpoint monsterViewpoint) {
+        BattleParticipant target = AIUtils.GetNearestHero(monsterViewpoint, this.owner);
+        DealDamageEffect damageEffect = new DealDamageEffect(target, 100);
+        effectApplier.Apply(damageEffect);
+        yield break;
+    }
+}

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