pf2e.fyi
From Pathfinder Book of the Dead, which isn't enabled.

Master of the Dead

FEAT 12
Archetype Reanimator
Prerequisites Deathly Secrets

You have reached the pinnacle of the reanimator's craft: the ability to raise nearly any corpse or skeleton as a gruesome mockery of the creature it once was. You learn the Shambling Horror focus spell. Your focus pool increases by 1 Focus Point.

Pathfinder Book of the DeadOGL