Sefris of the Hidden Ways, Radiant Solar, Sun Titan, Fell Stinger, and Spark Double

Prerequisites

• Sefris of the Hidden Ways on the battlefield
• Radiant Solar on the battlefield
• Sun Titan in hand
• Fell Stinger in the graveyard
• Spark Double on the battlefield
• You are not currently venturing in a dungeon
• You have the highest life total
• available

Steps

1. Cast Sun Titan by paying
2. When Sun Titan enters the battlefield, it, Radiant Solar and Spark Double trigger
3. Resolve the Sun Titan trigger, returning Fell Stinger from your graveyard to the battlefield
4. When Fell Stinger enters the battlefield, its exploit ability, Radiant Solar and Spark Double trigger
5. Resolve the Fell Stinger trigger, causing you to sacrifice it
6. Fell Stinger's second ability triggers, causing target player to draw 2 cards and lose 2 life
7. Resolve the Spark Double trigger from step 4, causing you to venture into the "Trapped Entry" room of Tomb of Annihilation, causing each player to lose 1 life
8. Resolve the Radiant Solar trigger from step 4, causing you to venture into the "Veils of Fear" room, causing each player to discard a card or lose 2 life
9. Resolve the Spark Double trigger from step 2, causing you to venture into the "Sandfall Cell" room, causing you to sacrifice Sun Titan and each opponent to either sacrifice a creature, artifact or land, or lose 2 life
10. Resolve the Radiant Solar trigger from step 2, causing you to venture into the "Cradle of the Death God" room, creating a legendary 4/4 The Atropal creature token and completing Tomb of Annihilation
11. Sefris' second ability triggers, returning Sun Titan from your graveyard to the battlefield
12. Repeat from step 2

Results

• Near-infinite card draw for any number of players
• Near-infinite death triggers
• Near-infinite draw triggers for any number of players
• Near-infinite ETB
• Near-infinite lifeloss
• Near-infinite LTB
• Near-infinite sacrifice triggers