为 乙太攫击兵 寻找最佳的史迹套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
Flying
When this creature enters, you get (two energy counters).
Whenever this creature attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token.
