Mayael's Aria, and Ancient Ooze

Prerequisites

• Mayael's Aria on the battlefield
• Ancient Ooze on the battlefield
• The mana value of other creatures you control is at least 19

Steps

1. At the beginning of your upkeep, Mayael's Aria triggers, causing you to put a +1/+1 counter on each creature you control, gain 10 life and win the game

Results

• Win the game