Nether Traitor + Kheru Goldkeeper + Quintorius, Field Historian + Phantom Train

Nether Traitor

Kheru Goldkeeper

Quintorius, Field Historian

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Nether Traitor.
2. Activate Phantom Train by sacrificing another creature.
3. When the creature dies, Nether Traitor triggers, causing you to pay to return Nether Traitor from your graveyard to the battlefield.
4. Kheru Goldkeeper and Quintorius triggers, creating a Treasure token and creature token.
5. Resolve the Phantom Train ability.
6. Activate the Treasure by tapping and sacrificing it, adding .
7. Repeat.

This ingenious loop relies on Phantom Train's ability to repeatedly sacrifice creatures, transforming itself into a Spirit artifact creature while growing with +1/+1 counters. Each time Nether Traitor is sacrificed to the Train, its own death triggers its recursion ability, letting you pay {B} to bring it right back to the battlefield. Meanwhile, Kheru Goldkeeper and Quintorius, Field Historian stand ready to watch cards leave your graveyard, rewarding every recurrence by spitting out a Treasure token and a 3/2 Spirit creature token. The Treasure token you create can then be immediately sacrificed to pay the black mana required to bring Nether Traitor back, keeping the engine running endlessly.