Gideon of the Trials, Magus of the Mirror, and Wall of Blood

Prerequisites

• Gideon of the Trials on the battlefield
• Magus of the Mirror on the battlefield
• Wall of Blood on the battlefield
• You have earned Gideon's emblem

Steps

1. During your upkeep, activate Wall of Blood by paying 1 life, giving Wall of Blood +1/+1 until end of 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