Bloodsoaked Champion + Pitiless Plunderer + Phantom Train + Rat King, Pale Piper

Bloodsoaked Champion

Pitiless Plunderer

Phantom Train

Rat King, Pale Piper

How it works

1. Activate Phantom Train by sacrificing Bloodsoaked Champion.
2. When Bloodsoaked Champion dies, Pitiless Plunderer and Rat King trigger, creating a creature token and a Treasure token.
3. Resolve the Phantom Train ability.
4. Activate Phantom Train by sacrificing the creature token.
5. When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token.
6. Resolve the Phantom Train ability.
7. Activate the Treasures by tapping and sacrificing them, adding 1.
8. Activate Bloodsoaked Champion by paying 1, returning it from your graveyard to the battlefield.
9. Repeat.

This elegant loop turns the tireless persistence of Bloodsoaked Champion into an endless engine of growth and resources. As you sacrifice the Champion to feed Phantom Train, Pitiless Plunderer quietly cashes in that death for a valuable Treasure token, while Rat King, Pale Piper ensures you're never short of fodder by spawning a Rat token whenever a nontoken creature leaves the battlefield. By cracking the generated Treasures for mana, you can easily pay the Champion's raid cost to bring it right back from the graveyard for another round.