Cavalier of Night + Paleontologist's Pick-Axe // Dinosaur Headdress + Priest of Gix + Phyrexian Altar

Cavalier of Night

Paleontologist's Pick-Axe // Dinosaur Headdress

Priest of Gix

Phyrexian Altar

How it works

1. Activate Dinosaur Headdress' equip ability by paying 2, attaching it to Priest of Gix and causing Priest of Gix to become a copy of Cavalier of Night.
2. Activate Phyrexian Altar by sacrificing Priest of Gix, adding one mana of any color.
3. When Priest of Gix dies, its second ability triggers, returning itself from your graveyard to the battlefield.
4. When Priest of Gix enters the battlefield, it triggers, adding .
5. Repeat.

This clever loop turns the unassuming Priest of Gix into an infinite mana engine by leveraging the copy mechanics of Dinosaur Headdress, which transforms from Paleontologist's Pick-Axe through its Craft ability. By copying Cavalier of Night, the Priest inherits that creature's death trigger, allowing it to pull itself right back out of the graveyard whenever it hits the bin. Phyrexian Altar provides the necessary sacrifice outlet to fuel the cycle while converting the mana generated by the entering Priest of Gix into any color you need.