Atogatog, Mayael's Aria, and Megatog

Prerequisites

• Atogatog on the battlefield
• Mayael's Aria on the battlefield
• Megatog on the battlefield
• You control at least four artifacts

Steps

1. At the beginning of your upkeep, Mayael's Aria triggers
2. Holding priority, activate Megatog by sacrificing an artifact, giving it +3/+3 until end of turn
3. Repeat step 2 three additional times
4. Activate Atogatog by sacrificing Megatog, giving Atogatog +15/+15 until end of turn
5. Resolve the Mayael's Aria trigger, causing you to put a +1/+1 counter on each creature you control, gain ten life, and win the game

Results

• Win the game at the beginning of your next upkeep