Trygon Prime
From Warhammer 40,000 Commander set
Trygon Prime
Creature — Tyranid
4/4
Subterranean Assault — Whenever this creature attacks, put a +1/+1 counter on it and a +1/+1 counter on up to one other target attacking creature. That creature can't be blocked this turn.
Rulings
- "That creature" refers to the other target attacking creature. It doesn't refer to Trygon Prime, even if you didn't choose a target.