Doc Aurlock, Grizzled Genius + Planar Void + Eternal Scourge + Phyrexian Altar

Doc Aurlock, Grizzled Genius

Planar Void

Eternal Scourge

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing Eternal Scourge, adding 1.
2. When Eternal Scourge dies, Planar Void triggers, exiling Eternal Scourge from your graveyard.
3. Cast Eternal Scourge from exile by paying 1.
4. Repeat.

This ingenious loop turns a self-recurring creature into an endless engine of sacrifice. By leveraging Phyrexian Altar to sacrifice Eternal Scourge, you immediately net a mana while triggering Planar Void, which swiftly intercepts the Scourge on its way to the graveyard and banishes it into exile instead. From there, Eternal Scourge’s intrinsic ability lets you cast it right back out, a process made entirely free thanks to Doc Aurlock, Grizzled Genius reducing its exile-casting cost by {2} to match the mana you just generated.