Wave of Rats

Rattenflut (Wave of Rats) (de)

Creature - Rat | Power/Toughness: 4 / 2 (CMC 4)
Trample
When Wave of Rats dies, if it dealt combat damage to a player this turn, return it to the battlefield under its owner's control.
Blitz (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.)