Toxrill, the Corrosive (Promo Pack) [Innistrad: Crimson Vow Promos] 8+ With this box

With this box

Set: Secret Lair Drop Promos Type: Artifact Rarity: Rare Cost: {3} Whenever a Dragon enters the battlefield under your control

Riders chase the fading light recklessly through the mountains

put a gold counter on Dragon's Hoard

With this 144-page sourcebook

Toxrill, the Corrosive (Promo Pack) [Innistrad: Crimson Vow Promos] 8+ With this boxSet: Innistrad: Crimson Vow Promos Type: Legendary Creature Slug Horror Rarity: Mythic Cost: {5}{B}{B} At the beginning of each end step, put a slime counter on each creature you don't control. Creatures you don't control get 1 1 for each slime counter on them. Whenever a creature you don't control with a slime counter on it dies, create a 1 1 black Slug creature token. {U}{B}, Sacrifice a Slug: Draw a card.