Phyrexian Wurm

Trample
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Modern Horizons 3 Tokens

Phyrexia: All Will Be One Commander Tokens

Wurmquake

Corrupted — Create an X/X green Phyrexian Wurm creature token with trample and toxic 1, where X is the amount of mana spent to cast this spell. Then for each opponent with three or more poison counters, you create another one of those tokens.
Flashback {8}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Poison Counter

(A player with ten or more poison counters loses the game.)