Biovisionary + Echo Mage + Stolen Identity

Biovisionary

Echo Mage

Stolen Identity

How it works

1. Cast Stolen Identity by paying its mana cost, targeting Biovisionary.
2. Holding priority, activate Echo Mage by tapping it, copying Stolen Identity twice, with both copies targeting Biovisionary.
3. Resolve all Stolen Identity 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.

This clever strategy relies on leveraging Echo Mage's fully leveled-up ability to multiply a single spell into a game-winning flurry. By casting Stolen Identity and targeting Biovisionary, you set up the Mage's level 4+ tap ability to flood the board with the necessary token copies. With four Biovisionaries now under your control, the original creature's delayed end-step trigger easily meets its condition, handing you an immediate victory.