Phyrexian Unlife, Magus of the Mirror, and Ethereal Champion

Prerequisites

• Phyrexian Unlife on the battlefield
• Magus of the Mirror on the battlefield
• Ethereal Champion on the battlefield

Steps

1. During your upkeep, activate Ethereal Champion by paying 1 life, preventing the next one damage that will be dealt to Ethereal Champion this turn
2. Repeat step 1 until you have zero life
3. Activate Magus of the Mirror by tapping and sacrificing it, exchanging your life total with an opponent
4. The opponent loses the game due to having zero life

Results

• Target player loses the game