Toxrill, the Corrosive [Innistrad: Double Feature] Cyclops Magnetic closure and durable elastic

Magnetic closure and durable elastic band provide security during travel or storage

Set: Commander Legends: Battle for Baldur's Gate Type: Land Rarity: Rare Morphic Pool enters the battlefield tapped unless you have two or more opponents

That description is still mostly accurate

Under his rule

Toxrill, the Corrosive [Innistrad: Double Feature] Cyclops Magnetic closure and durable elasticSet: Innistrad: Double Feature 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.