Toxrill, the Corrosive - Innistrad: Double Feature (DBL) Blue [−3]: Create a green Treefolk

[−3]: Create a green Treefolk creature token with reach and "This creature's power and toughness are each equal to the number of lands you control

you may search your library for an enchantment card

That creature gains haste until end of turn

As long as Necrotic Ooze is on the battlefield

1x Foil Treasure Token

Toxrill, the Corrosive - Innistrad: Double Feature (DBL) Blue [−3]: Create a green TreefolkAt 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.