Simic Ascendancy, and Conclave Sledge-Captain

Prerequisites

• Simic Ascendancy 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. Simic Ascendancy's first ability triggers, putting a growth counter on it
5. Repeat from step 3 for each remaining trigger
6. Deal combat damage with the creature that was targeted in step 3, triggering the creature's ability three times
7. Resolve the first trigger, putting a number of +1/+1 counters on the creature equal to the damage dealt
8. Simic Ascendancy's first ability triggers, putting that many growth counters on it
9. Repeat from step 7 for each remaining trigger
10. At the beginning of your next upkeep, Simic Ascendancy's second ability triggers, causing you to win the game

Results

• Win the game at the beginning of your next upkeep