Implement GraniteDefense

Assets/Battle/CardsMonsters/GraniteDefenseMCard.cs

@@ -0,0 +1,21 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class GraniteDefenseMCard : MonsterCard
+{
+    public GraniteDefenseMCard(BattleParticipant owner)
+        : base(owner, MCardId.GolemBerserk, "Granite Defense", 3, CardType.Skill,
+            "Block 5 damage on other allies.") {
+    }
+
+    public override IEnumerator Use(IBattleEffectApplier effectApplier, MonsterViewpoint monsterViewpoint) {
+        yield return new WaitForSeconds(1f);
+        foreach (BattleMonster monster in monsterViewpoint.Monsters) {
+            if (monster != this.owner) {
+                effectApplier.Apply(new BlockEffect(monster, 5));
+                yield return new WaitForSeconds(1f);
+            }
+        }
+    }
+}