Aspiring Champion + Blightsteel Colossus + Sylvan Tutor + Leyline of Transformation

Aspiring Champion

Blightsteel Colossus

Sylvan Tutor

Leyline of Transformation

How it works

1. Cast Sylvan Tutor by paying , searching your library for Blightsteel Colossus and putting it on top of your library.
2. Deal combat damage to an opponent using Aspiring Champion.
3. Aspiring Champion triggers, causing you to sacrifice it, then reveal Blightsteel Colossus from the top of your library and put it onto the battlefield as a Demon due to Leyline of Transformation, then causing Blightsteel Colossus to give each opponent eleven poison counters.
4. Each opponent loses the game as a state-based action due to having ten or more poison counters.