Cybermen Squadron, and Blightsteel Colossus

Prerequisites

• Cybermen Squadron on the battlefield
• Blightsteel Colossus on the battlefield
• Blightsteel Colossus does not have summoning sickness
• Opponents are unable to block creatures you control

Steps

1. Declare Blightsteel Colossus as an attacker
2. Blightsteel Colossus' myriad ability triggers, creating a token copy of it attacking each other opponent
3. Deal combat damage using Blightsteel Colossus and the Blightsteel Colossus tokens
4. Each opponent loses the game as a state-based action due to having ten or more poison counters

Results

• Each opponent loses the game