Summon: G.F. Cerberus + Biovisionary + Heat Shimmer

Summon: G.F. Cerberus

Biovisionary

Heat Shimmer

How it works

1. At the beginning of your precombat main phase. Summon: G.F. Cerberus triggers, putting a lore counter on it and triggering its third chapter ability, copying the next instant or sorcery spell you cast twice.
2. Cast Heat Shimmer by paying its mana cost, targeting Biovisionary.
3. Summon: G.F. Cerberus triggers, copying Heat Shimmer twice, with the copies targeting Biovisionary.
4. Resolve all Heat Shimmers, copying Biovisionary three times.
5. At the beginning of your end step, each Biovisionary triggers. Resolve the first trigger, causing you to win the game.

This elegant concoction turns a single spell into a game-winning army in a single turn. By leveraging the chapter III ability of Summon: G.F. Cerberus to automatically copy your next instant or sorcery twice, a single cast of Heat Shimmer targeting Biovisionary explodes into three separate token copies. With the original and the three new tokens all sharing the exact same name, you instantly meet the threshold for Biovisionary's own static end-step trigger, sealing your victory before your opponents even have a chance to react.