脑虫 (Zoanthrope) (zhs)
Creature - Tyranid
(CMC 2)
Ravenous (This creature enters the battlefield with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
Flying, ward
Warp Blast -- When Zoanthrope enters the battlefield, it deals X damage to any target.