Dain'fae, the Hexfang

Dain'fae, the Hexfang enters the battlefield with
X hex counters.
At the beginning of your upkeep, for each aura attached to Dain'fae, the Hexfang, put a hex
counter on him.
Remove X hex counters, {t}: Exile target creature blocking Dain'fae, the Hexfang or blocked by
him with a converted mana cost of X. The
creature's controller creates a 1/1 green frog
creature token.