Summon: G.F. Cerberus + Biovisionary + Irenicus's Vile Duplication

Summon: G.F. Cerberus

Biovisionary

Irenicus's Vile Duplication

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 Irenicus's Vile Duplication by paying its mana cost, targeting Biovisionary.
3. Summon: G.F. Cerberus triggers, copying Irenicus's Vile Duplication twice, with the copies targeting Biovisionary.
4. Resolve all Irenicus's Vile Duplications, 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 win-the-game sequence relies on the explosive spell-copying power of Summon: G.F. Cerberus to instantly meet Biovisionary's alternate condition. By letting Summon: G.F. Cerberus reach its third chapter, you set up a single spell cast to be tripled. When you cast Irenicus's Vile Duplication targeting your lone Biovisionary, the Saga's triggered ability steps in to create two additional copies of the spell. As all three instances of Irenicus's Vile Duplication resolve, they flood the battlefield with the required creature tokens, allowing Biovisionary's end-step trigger to hand you the victory immediately.