Radiant Solar + Sefris of the Hidden Ways + Wormfang Drake + Rilsa Rael, Kingpin

Radiant Solar

Sefris of the Hidden Ways

Wormfang Drake

Rilsa Rael, Kingpin

How it works

1. Cast Wormfang Drake by paying its mana cost.
2. When Wormfang Drake enters, it and Radiant Solar trigger.
3. Resolve the Wormfang Drake trigger, exiling Rilsa Rael.
4. Resolve the Radiant Solar trigger, venturing into the Oubliette room, causing you to discard a card and then sacrifice Wormfang Drake.
5. When Wormfang Drake dies, it triggers, returning Rilsa Rael from exile to the battlefield.
6. When Rilsa Rael enters, it and Radiant Solar trigger.
7. Resolve the Rilsa Rael 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 Wormfang Drake from your graveyard to the battlefield.
10. When Wormfang Drake enters, it and Radiant Solar trigger.
11. Resolve the Wormfang Drake trigger, exiling Rilsa Rael.
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 Wormfang Drake.
14. Repeat from step 5.

This clever loop turns the cycle of life, death, and dungeon delving into an engine for near-infinite triggers by leveraging the recursive power of Sefris of the Hidden Ways. Whenever Wormfang Drake enters the battlefield, its reflexive sacrifice trigger exiles Rilsa Rael, Kingpin while Radiant Solar ventures into the dungeon. As the loop progresses and Rilsa Rael repeatedly enters to complete dungeons, Sefris triggers off creatures entering the graveyard—such as redundant legend-rule tokens or sacrifices—to pull Wormfang Drake straight back from the graveyard. This creates a self-sustaining cycle that endlessly repeats enter-the-battlefield, leave-the-battlefield, and death events.