From Pathfinder Lost Omens Impossible Lands, which isn't enabled.

Steal the Sky

FOCUS 5

Cast

Targets the creature you hit

Defense Fortitude

Trigger You make a successful unarmed Strike against a flying creature.

You deny a flying creature the support of the air.

Critical Success The creature is unaffected.

Success The target descends 60 feet. If it hits a surface, it takes bludgeoning damage as if it had fallen.

Failure As success; if the target hits a surface, it falls Prone and can't Fly, levitate, or otherwise leave the ground for 1 minute.

Critical Failure As failure, and the creature takes double damage from hitting a surface.

Heightened (+1) Increase the distance the creature must descend by 20 feet.

Pathfinder Lost Omens Impossible LandsOGL