Biovisionary, Repeated Reverberation, and Cackling Counterpart

Prerequisites

• Biovisionary on the battlefield
• Repeated Reverberation in hand
• Cackling Counterpart in hand
• available

Steps

1. Cast Repeated Reverberation by paying , copying the next instant or sorcery spell you cast twice
2. Cast Cackling Counterpart by paying , targeting Biovisionary
3. Repeated Reverberation triggers, copying Cackling Counterpart twice, with both copies targeting Biovisionary
4. Resolve all Cackling Counterparts, 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

Results

• Win the game