Radiant Solar trigger, venturing into the Oubliette room, causing you to discard a card and then sacrifice
Fiend Hunter.
When
Fiend Hunter dies, it triggers, returning
Tomb of Horrors Adventurer from exile to the battlefield.
When
Tomb of Horrors Adventurer enters, it and
Radiant Solar trigger.
Resolve the
Tomb of Horrors Adventurer trigger, venturing into the Cradle of the Death God room, creating a 4/4 legendary The Atropal creature token and completing
Tomb of Annihilation.
If you control two or more The Atropal tokens, put all but one into your graveyard due to the legend rule.
Sefris' second ability triggers, returning
Fiend Hunter from your graveyard to the battlefield.
When
Fiend Hunter enters, it and
Radiant Solar trigger.
Resolve the
Fiend Hunter trigger, exiling
Tomb of Horrors Adventurer.
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.
Resolve the
Radiant Solar trigger from step 6, venturing into the Oubliette room, causing you to discard a card and then sacrifice
Fiend Hunter.
Repeat from step 5.
Results
Near-infinite creature ETB.
Near-infinite creature LTB.
Near-infinite death triggers.
Near-infinite lifeloss for all players.
Near-infinite creature sacrifice triggers.
Metadata
Bracket tag
ExhibitionBracket 1+
For any deck
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.