Medomai the Ageless + Alesha, Who Smiles at Death + Viscera Seer + Chameleon, Master of Disguise

Medomai the Ageless

Alesha, Who Smiles at Death

Viscera Seer

Chameleon, Master of Disguise

How it works

1. Declare Alesha as an attacker.
2. Alesha triggers, causing you to pay U/BU/B to return Chameleon from your graveyard to the battlefield tapped and attacking as a nonlegendary copy of Medomai the Ageless.
3. Deal combat damage using Chameleon.
4. Chameleon triggers, causing you to take an extra turn after this one.
5. Activate Viscera Seer by sacrificing Chameleon
6. Repeat each turn.

This clever loop bypasses Medomai the Ageless's restriction against attacking on extra turns by using Chameleon, Master of Disguise as a nonlegendary copy of it instead. When you declare Alesha, Who Smiles at Death as an attacker, her ability lets you recur Chameleon straight from the graveyard tapped and attacking as that copy of Medomai, which successfully triggers an extra turn when combat damage lands. Finally, Viscera Seer lets you sacrifice the copy in Main Phase 2 so you can repeat the entire process on your next turn, ensuring you never run out of time.