Initial Card State
- Eccentric Apprentice in your graveyard.
- All other permanents on the battlefield.
Notable Prerequisites
- You are able to complete a dungeon.
Steps
- Complete a dungeon.
- Sefris' second ability triggers twice due to Delney.
- Resolve the first trigger, returning up to one other creature from your graveyard to the battlefield.
- Resolve the second trigger, returning Eccentric Apprentice from your graveyard onto the battlefield.
- When Eccentric Apprentice enters, it and Preston trigger twice due to Delney.
- Resolve a Preston trigger, creating a token copy of Eccentric Apprentice that is a 0/1 Illusion.
- When the Eccentric Apprentice token enters, it triggers twice due to Delney.
- Resolve the first Eccentric Apprentice token trigger, venturing into Tomb of Annihilation and into the Trapped Entry room, causing each player to lose 1 life.
- Resolve the second Eccentric Apprentice token trigger, venturing into the Oubliette room, causing you to discard a card and then sacrifice the nontoken Eccentric Apprentice.
- Resolve the second Preston trigger from step 5, creating a token copy of Eccentric Apprentice that is a 0/1 Illusion.
- When the Eccentric Apprentice token enters, it triggers twice due to Delney.
- Resolve the first Eccentric Apprentice token 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.
- Repeat from step 2.
Results
- Cast a subset of spells in your library.
- Near-infinite +1/+1 counters.
- Near-infinite ETB.
- Near-infinite LTB.
- Near-infinite Treasure tokens.
- Near-infinite card draw.
- Near-infinite colored mana.
- Near-infinite creature tokens.
- Near-infinite death triggers.
- Near-infinite draw triggers.
- Near-infinite lifegain.
- Near-infinite lifegain triggers.
- Near-infinite lifeloss.
- Near-infinite lifeloss for all players.
- Near-infinite sacrifice triggers.
- Near-infinite ventures into the dungeon.
- Return most creature cards from your graveyard onto the battlefield.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).