Sovereign Okinec Ahau + Simic Ascendancy + Mossbridge Troll

Sovereign Okinec Ahau

Simic Ascendancy

Mossbridge Troll

How it works

1. Activate Mossbridge Troll by tapping any other creatures you control except Sovereign Okinec Ahau with total power 10 or greater, giving Mossbridge Troll +20/+20 until end of turn.
2. Declare Sovereign Okinec Ahau as an attacker.
3. Sovereign Okinec Ahau triggers, putting twenty +1/+1 counters on Mossbridge Troll.
4. Simic Ascendancy's first ability triggers, putting 20 growth counters on it.
5. At the beginning of your next upkeep, Simic Ascendancy's second ability triggers, causing you to win the game.

This clever setup transforms a colossal giant into an instant win condition by leveraging the massive power disparity created by Mossbridge Troll's self-buff ability. Once you tap down your other forces to grant the Troll its massive +20/+20 bonus, attacking with Sovereign Okinec Ahau recognizes that inflated power and floods the Troll with twenty +1/+1 counters. Because Simic Ascendancy watches for those exact counters to pile up, it instantly stockpiles twenty growth counters in a single swing, setting you up to claim immediate victory at the start of your next upkeep.