Activate Krark-Clan Ironworks by sacrificing Cathodion, adding CC.
When Cathodion dies, it triggers, adding CCC.
Activate Eldrazi Displacer by paying 2C, blinking Edgar.
Cast Cathodion from your graveyard by paying 2.
Repeat.
This intricate loop turns Cathodion and Krark-Clan Ironworks into an endless engine of sacrifice and resurrection, fueled by the mana Cathodion generates both upon death and when filtered through the Ironworks. Eldrazi Displacer acts as the mechanical heart of the sequence, continuously blinking Edgar, Master Machinist so you can bypass standard zone restrictions and cast Cathodion directly from your graveyard. Meanwhile, Urza, Lord Protector quietly lightens the load by reducing the casting cost of your spells, making the entire resurrection loop economically viable.