为 行走集库 寻找最佳的标准套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
This creature enters with X +1/+1 counters on it.
: Put a +1/+1 counter on this creature.
When this creature dies, draw a card for each +1/+1 counter on it.
