Sefris of the Hidden Ways + Radiant Solar + Phyrexian Metamorph + Chameleon, Master of Disguise

Sefris of the Hidden Ways

Radiant Solar

Phyrexian Metamorph

Chameleon, Master of Disguise

How it works

1. Put any nontoken creature onto the battlefield.
2. When the creature enters, Radiant Solar, Chameleon and Phyrexian Metamorph each trigger.
3. Resolve the Radiant Solar trigger, causing you to venture into Tomb of Annihilation and into the Trapped Entry room, causing each player to lose 1 life.
4. Resolve the Chameleon trigger, venturing into the Oubliette room, causing you to discard a card and then sacrifice Radiant Solar.
5. Resolve the Phyrexian Metamorph trigger, venturing into the Cradle of the Death God room, creating a 4/4 legendary The Atropal creature token and completing Tomb of Annihilation.
6. If you control two or more The Atropal tokens, put all but one into your graveyard due to the legend rule.
7. Sefris' second ability triggers, returning Radiant Solar from your graveyard to the battlefield.
8. Repeat from step 2.

This clever loop harnesses Sefris of the Hidden Ways as your engine, transforming repetitive dungeon exploration into a perpetual resurrection machine. By deploying a creature, you trigger Radiant Solar, Chameleon, Master of Disguise, and a cloned Phyrexian Metamorph simultaneously to rapidly advance through the Tomb of Annihilation dungeon. Sacrificing Radiant Solar along the way sends it to the graveyard, triggering Sefris of the Hidden Ways's final ability to return it safely to the battlefield.