Solphim, Mayhem Dominus, and Heartless Hidetsugu

Prerequisites

• Solphim, Mayhem Dominus on the battlefield
• Heartless Hidetsugu on the battlefield

Steps

1. Activate Heartless Hidetsugu by tapping it, causing it to deal lethal damage to each opponent with an even life total, nearly lethal damage to each opponent with an odd life total, and damage to you equal to half your life total rounded down

Results

• Each opponent loses the game
• Near-infinite damage to all players