Biovisionary + Thunderclap Drake + Cackling Counterpart

Biovisionary

Thunderclap Drake

Cackling Counterpart

How it works

1. Activate Thunderclap Drake by paying 2 and sacrificing it.
2. Cast Cackling Counterpart by paying its mana cost, targeting Biovisionary.
3. Thunderclap Drake triggers, copying Cackling Counterpart at least twice, with all copies targeting Biovisionary.
4. Resolve all Cackling Counterpart spells, creating at least three copies of Biovisionary.
5. At the beginning of your end step, each Biovisionary triggers, causing you to win the game.