Biovisionary + Echo Mage + Repudiate // Replicate

Biovisionary

Echo Mage

Repudiate // Replicate

How it works

1. Cast Replicate by paying its mana cost, targeting Biovisionary.
2. Holding priority, activate Echo Mage by tapping it, copying Replicate twice, with both copies targeting Biovisionary.
3. Resolve all Replicate spells, creating three token copies of Biovisionary.
4. At the beginning of your end step, each Biovisionary triggers. Resolve the first trigger, causing you to win the game.