Biovisionary + Echo Mage + Self-Reflection

Biovisionary

Echo Mage

Self-Reflection

How it works

1. Cast Self-Reflection by paying its mana cost, targeting Biovisionary.
2. Holding priority, activate Echo Mage by tapping it, copying Self-Reflection twice, with both copies targeting Biovisionary.
3. Resolve all Self-Reflection 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 win condition relies on multiplying a single spell to hit the critical mass required for victory. By casting Self-Reflection to target your original Biovisionary, you set the stage for Echo Mage's fully-leveled ability to step in and copy that instant spell twice on the stack. The resulting three token copies—combined with the original creature—instantly fulfill Biovisionary's own strict requirements at the beginning of the end step, successfully closing out the game all in one explosive sequence.