Sefris of the Hidden Ways + Radiant Solar + Sakashima the Impostor + Evil Twin

Sefris of the Hidden Ways

Radiant Solar

Sakashima the Impostor

Evil Twin

How it works

1. Put any nontoken creature onto the battlefield.
2. When the creature enters, Radiant Solar, Evil Twin and Sakashima the Impostor 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 Evil Twin trigger, venturing into the Oubliette room, causing you to discard a card and then sacrifice Radiant Solar.
5. Resolve the Sakashima the Impostor 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 mesmerizing engine turns the revolving door of the dungeon into a relentless doom loop, powered by Sefris of the Hidden Ways watching over your graveyard to resurrect fallen heroes. When a creature enters the battlefield, Radiant Solar steps in as your primary dungeon guide, while Sakashima the Impostor and Evil Twin copy your enter-the-battlefield triggers by leveraging clone technology. Evil Twin plays the executioner by sacrificing Radiant Solar into the Oubliette, sending the angel to the graveyard so that Sefris can trigger its "Create Undead" completion ability and bring it straight back. Meanwhile, Sakashima the Impostor pushes you deep into the Tomb of Annihilation to spawn Atropal tokens that trigger the legend rule, immediately feeding Sefris of the Hidden Ways yet another creature into the graveyard to restart the cycle.