Grenzo, Dungeon Warden [The List]

Set: The List Type: Legendary Creature — Goblin Rogue Rarity: Rare Cost: {X}{B}{R} Grenzo, Dungeon Warden enters the battlefield with X +1/+1 counters on it.{2}: Put the bottom card of your library into your graveyard. If it's a creature card with power less than or equal to Grenzo's power, put it onto the battlefield.