Prerequisites
- Shaun, Father of Synths on the battlefield
- Raphael, Tag Team Tough on the battlefield
Steps
- Declare Raphael as an attacker
- Shaun triggers, creating a tapped and attacking copy of Raphael that isn't legendary
- Deal combat damage using the Raphael token
- It triggers, untapping all attacking creatures you control and causing you to get an additional combat phase after this one
- Repeat each combat phase
Results
Required Cards 2

Shaun, Father of Synths
Legendary Creature — Human Scientist

Raphael, Tag Team Tough
Legendary Creature — Mutant Ninja Turtle