diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index f5b219d7..2a4db8b5 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -893,3 +893,17 @@ void Creature::ResetAction()
     action_target_id = 0;
     need_sync_active_player = true;
 }
+
+bool Creature::IsProperTarget(Creature* target)
+{
+    return true;
+}
+
+bool Creature::IsEnemy(Creature* target)
+{
+    if (room->GetRoomMode() == kZombieMode) {
+        return target->GetRace() != GetRace();
+    } else {
+        return team_id != target->team_id;
+    }
+}
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index 69a1e2e2..5c0edce9 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -57,6 +57,8 @@ class Creature : public MoveableEntity
     void AddPassiveSkill(int skill_id);
     void ClearPassiveSkill();
 
+    bool IsProperTarget(Creature* target);
+    bool IsEnemy(Creature* target);
     virtual void SelectSkillTargets(Skill* skill,
                                     const a8::Vec2& target_pos,
                                     std::set<Entity*>& target_list);
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 48729883..f49d64db 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -2032,15 +2032,6 @@ void Human::WinExp(Human* sender, int exp)
     }
 }
 
-bool Human::IsEnemy(Human* hum)
-{
-    if (room->GetRoomMode() == kZombieMode) {
-        return hum->GetRace() != GetRace();
-    } else {
-        return team_id != hum->team_id;
-    }
-}
-
 RoomObstacle* Human::SummonObstacle(int id, const a8::Vec2& pos)
 {
     RoomObstacle* obstacle = room->CreateObstacle(id, pos.x, pos.y);
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index c39c0c1d..8921cb1b 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -247,7 +247,6 @@ class Human : public Creature
     int GetSeat() { return seat_; }
     void SetSeat(int seat) { seat_ = seat; }
     void DeadDrop();
-    bool IsEnemy(Human* hum);
     RoomObstacle* SummonObstacle(int id, const a8::Vec2& pos);
     virtual std::string GetName() override { return name;};