Morophon, the Boundless + Jodah, Archmage Eternal + Ebondeath, Dracolich + Bartolomé del Presidio

Morophon, the Boundless

Jodah, Archmage Eternal

Ebondeath, Dracolich

Bartolomé del Presidio

How it works

1. Cast Ebondeath from your graveyard by paying 0.
2. Activate Bartolomé del Presidio by sacrificing Ebondeath, putting a +1/+1 counter on Bartolomé del Presidio.
3. Repeat.

This clever loop relies on Morophon, the Boundless naming "Dragon" (or any chosen creature type) to completely eliminate the colored mana requirement for Jodah, Archmage Eternal's alternative casting cost. With Jodah on the battlefield, this reduces Ebondeath, Dracolich's mana cost down to precisely zero, allowing you to cast the skeletal dragon straight from your graveyard whenever a creature dies. You then feed Ebondeath directly to Bartolomé del Presidio's sacrifice ability, which conveniently satisfies Ebondeath's condition to be recast and lets you repeat the entire process indefinitely.