Biovisionary + Echo Mage + Three Steps Ahead

Biovisionary

Echo Mage

Three Steps Ahead

How it works

1. Cast Three Steps Ahead by paying plus an additional 3 to select its second mode, targeting Biovisionary.
2. Holding priority, activate Echo Mage by paying and tapping it, copying Three Steps Ahead twice, with both copies targeting Biovisionary.
3. Resolve all Three Steps Ahead 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.