Preston, the Vanisher + Delney, Streetwise Lookout + Sefris of the Hidden Ways + Goblin Bombardment + Feywild Caretaker

Preston, the Vanisher

Delney, Streetwise Lookout

Sefris of the Hidden Ways

Goblin Bombardment

Feywild Caretaker

How it works

1. Complete a dungeon.
2. Sefris' second ability triggers twice due to Delney.
3. Resolve the first trigger, returning up to one other creature from your graveyard to the battlefield.
4. Resolve the second trigger, returning Feywild Caretaker from your graveyard onto the battlefield.
5. When Feywild Caretaker enters, it triggers once and Preston triggers twice due to Delney.
6. Holding priority, activate Goblin Bombardment by sacrificing Feywild Caretaker.
7. Resolve a Preston trigger, creating a token copy of Feywild Caretaker that is a 0/1 Illusion.
8. When the Feywild Caretaker token enters, it triggers twice due to Delney.
9. Resolve the Feywild Caretaker token triggers, venturing into Undercity twice.
10. Resolve the second Preston trigger from step 5, creating a token copy of Feywild Caretaker that is a 0/1 Illusion.
11. Repeat steps 8 and 9 one additional time.
12. Resolve the Feywild Caretaker trigger from step 5, venturing into Undercity and completing Undercity.
13. Repeat from step 2.

This dazzling loop turns the dungeon-delving mastery of Sefris of the Hidden Ways into an endless engine of creation and destruction. Once Sefris completes a dungeon, Delney, Streetwise Lookout doubles her triggered ability, allowing you to return Feywild Caretaker straight to the battlefield alongside another creature. As Feywild Caretaker enters, Preston, the Vanisher leaps into action by creating a 0/1 Illusion copy of her, which Delney further doubles to trigger a torrent of initiative ventures. By using Goblin Bombardment to sacrifice the Caretaker tokens along the way, you can feed the engine, complete dungeons infinitely, and cycle through the entire loop to bury your opponents in endless triggers and damage.