Radiant Solar + Sefris of the Hidden Ways + Hostage Taker + Goliath Paladin

Radiant Solar

Sefris of the Hidden Ways

Hostage Taker

Goliath Paladin

How it works

1. Cast Hostage Taker by paying its mana cost.
2. When Hostage Taker enters, it and Radiant Solar trigger.
3. Resolve the Hostage Taker trigger, exiling Goliath Paladin until Hostage Taker leaves the battlefield.
4. Resolve the Radiant Solar trigger, venturing into the Oubliette room, causing you to discard a card and then sacrifice Hostage Taker.
5. Hostage Taker leaves the battlefield, causing Goliath Paladin to be returned to the battlefield from exile.
6. When Goliath Paladin enters, it and Radiant Solar trigger.
7. Resolve the Goliath Paladin trigger, venturing into the Cradle of the Death God room, creating a 4/4 legendary The Atropal creature token and completing Tomb of Annihilation.
8. If you control two or more The Atropal tokens, put all but one into your graveyard due to the legend rule.
9. Sefris' second ability triggers, returning Hostage Taker from your graveyard to the battlefield.
10. When Hostage Taker enters, it and Radiant Solar trigger.
11. Resolve the Hostage Taker trigger, exiling Goliath Paladin until Hostage Taker leaves the battlefield.
12. Resolve the Radiant Solar trigger from step 10, venturing into Tomb of Annihilation and into the Trapped Entry room, causing each player to lose 1 life.
13. Resolve the Radiant Solar trigger from step 6, venturing into the Oubliette room, causing you to discard a card and then sacrifice Hostage Taker.
14. Repeat from step 5.

This elegant loop turns the mechanics of dungeon crawling into an endless, self-sustaining engine. By pairing Radiant Solar with Goliath Paladin, every entry and exit cascades through the Tomb of Annihilation to generate tokens, while Sefris of the Hidden Ways stands ready to pull Hostage Taker straight out of the graveyard whenever the legend rule forces a sacrifice. Hostage Taker acts as the dynamic catalyst, repeatedly exiling and releasing Goliath Paladin to fuel the continuous cycle of dungeon progression and sacrifice.