Mayael's Aria, and Conclave Sledge-Captain

Prerequisites

• Mayael's Aria on the battlefield
• Conclave Sledge-Captain in hand
• You control a creature with power two or greater that can attack this turn and that cannot be blocked an opponent
• available

Steps

1. Cast Conclave Sledge-Captain by paying
2. When Conclave Sledge-Captain enters the battlefield, its backup ability triggers three times
3. Resolve the first trigger, putting a +1/+1 counter on the creature with power two or greater, and causing it to gain the printed abilities until end of turn
4. Repeat step 3 for each remaining trigger
5. Deal combat damage with the creature that was targeted in step 3, triggering the creature's ability three times, putting three +1/+1 counters on the creature for each damage it dealt
6. At the beginning of your next upkeep, Mayael's Aria triggers, 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