Preston, the Vanisher + Delney, Streetwise Lookout + Sefris of the Hidden Ways + Undermountain Adventurer + Bartolomé del Presidio
Preston, the Vanisher
Delney, Streetwise Lookout
Sefris of the Hidden Ways
Undermountain Adventurer
Bartolomé del Presidio
Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite artifact tokensInfinite +1/+1 counters on creatures you controlInfinite creature ETBInfinite creature LTBInfinite Treasure tokensInfinite card drawInfinite colored manaInfinite creature tokensInfinite death triggersInfinite draw triggersInfinite creature sacrifice triggersNear-infinite lifelossPut all basic lands from your library into your handPut all creature cards from your library onto the battlefieldReturn most creature cards from your graveyard onto the battlefield
How it works
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 Undermountain Adventurer from your graveyard onto the battlefield.
When Undermountain Adventurer enters, it triggers once and Preston triggers twice due to Delney.
Holding priority, activate Bartolomé del Presidio by sacrificing Undermountain Adventurer.
Resolve a Preston trigger, creating a token copy of Undermountain Adventurer that is a 0/1 Illusion.
When the Undermountain Adventurer token enters, it triggers twice due to Delney.
Resolve the Undermountain Adventurer token triggers, venturing into Undercity twice.
Resolve the second Preston trigger from step 5, creating a token copy of Undermountain Adventurer that is a 0/1 Illusion.
Repeat steps 8 and 9 one additional time.
Resolve the Undermountain Adventurer trigger from step 5, venturing into Undercity and completing Undercity.
Repeat from step 2.
This magnificent loop begins by leveraging Sefris of the Hidden Ways and Undermountain Adventurer to repeatedly dive into the Undercity, a process supercharged by Delney, Streetwise Lookout, which doubles all of Sefris's dungeon-completing resurrection triggers as well as the initiative-taking entries of Undermountain Adventurer. As those adventurers flood the battlefield, Preston, the Vanisher steps in to effortlessly multiply them into an army of 0/1 Illusion copies whenever they arrive uncast from the graveyard. Meanwhile, Bartolomé del Presidio stands ready to sacrifice these incoming tokens, growing his own power while feeding the graveyard so Sefris can loop the entire sequence indefinitely for infinite mana, triggers, and resources.