pf2e.fyi
From Pathfinder War of Immortals, which isn't enabled.

Apparition Cloud

FEAT 12
Activity reaction
Prerequisites Spirit Familiar

Trigger You are targeted by an attack.
Requirements Your familiar is adjacent to you or in your space.

With a mere thought, you discorporate your familiar into a thousand shards of spiritual magic, protecting both it and yourself from physical harm while making it difficult for enemies to move near you. You are Concealed from the triggering attack. Until the start of your next turn, your familiar can't be targeted and your enemies treat all spaces adjacent to you as difficult terrain.

Pathfinder War of ImmortalsORC