Wave of Rats

Trample
When this creature dies, if it dealt combat damage to a player this turn, return it to the battlefield under its owner's control.
Blitz {4}{B} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

践踏
当老鼠波群死去时，若它本回合中对任一牌手造成过战斗伤害，则将它在其拥有者的操控下移回战场。
急袭{4}{B}（如果你支付此咒语的急袭费用来施放之，则它获得敏捷与「当此生物死去时，抓一张牌。」在下一个结束步骤开始时，将它牺牲。）