Biovisionary + Complete the Circuit + Quasiduplicate

Biovisionary

Complete the Circuit

Quasiduplicate

How it works

1. Cast Complete the Circuit by paying 5, causing you to copy the next instant or sorcery spell you cast twice.
2. Cast Quasiduplicate by paying 1, targeting Biovisionary.
3. Complete the Circuit triggers, copying Quasiduplicate twice, with both copies targeting Biovisionary.
4. Resolve all Quasiduplicates, creating three token copies of Biovisionary.
5. At the beginning of your end step, each Biovisionary triggers.
6. Resolve the first trigger, causing you to win the game.