Edgar, Master Machinist + Eldrazi Displacer + Cathodion + Ashnod's Altar + Enthusiastic Mechanaut

Edgar, Master Machinist

Eldrazi Displacer

Cathodion

Ashnod's Altar

Enthusiastic Mechanaut

How it works

1. Activate Ashnod's Altar by sacrificing Cathodion, adding CC.
2. When Cathodion dies, it triggers, adding CCC.
3. Activate Eldrazi Displacer by paying 2C, blinking Edgar.
4. Cast Cathodion from your graveyard by paying 2.
5. Repeat.

This brilliant looping mechanism uses Ashnod's Altar as the central engine to sacrifice Cathodion, generating an initial burst of colorless mana that is instantly compounded by Cathodion's own dying trigger. With that mana fueling Eldrazi Displacer, you can repeatedly blink Edgar, Master Machinist, whose unique static ability lets you freely recast artifacts from your graveyard. To tie the loop together, Enthusiastic Mechanaut steps in as a cost reducer, ensuring that recasting Cathodion from the graveyard only costs {2}, leaving you with a surplus of mana and infinite triggers to spare.