Medomai the Ageless + Alesha, Who Smiles at Death + Phantom Train + Chameleon, Master of Disguise

Medomai the Ageless

Alesha, Who Smiles at Death

Phantom Train

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 Phantom Train by sacrificing Chameleon
6. Repeat each turn.

This clever loop turns Alesha, Who Smiles at Death into a relentless time-warp engine by leveraging her ability to recur low-power threats straight into the attack phase. Each turn, Alesha smuggles Chameleon, Master of Disguise back into play as a fresh copy of Medomai the Ageless, neatly bypassing Medomai's restriction against being cast or entering during extra turns while still securing that crucial combat damage trigger for infinite extra turns. Because Medomai would otherwise lock you out of attacking on those bonus turns, Phantom Train steps in as the ultimate safety valve, allowing you to sacrifice the copied bird before it stays stuck on the board so you can repeat the entire process anew.