Commander

Five decks or more

Toxrill, the Corrosive

Seven public Commander decks on mtg-agents are led by Toxrill, the Corrosive, and seven different people built them. What sets them apart: five of the seven run Counterspell, and three run Arcane Signet. Toxrill is one of eighty-six Dimir commanders here, which together lead 592 decks.

Toxrill, the Corrosive card
Legendary Creature — Slug Horror7/7Dimir

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.

, Sacrifice a Slug: Draw a card.