定(じょう)命(みょう)の者(もの)の宿(しゅく)敵(てき)

This spell costs less to cast for each creature card in your graveyard.

: Monstrosity 5. This ability costs less to activate for each creature card in your graveyard. (If this creature isn't monstrous, put five +1/+1 counters on it and it becomes monstrous.)