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

Giant-Felling Comet

ACTION
Activity 2 actions

You shoot the Starshot, causing a detonation in a 5-foot burst within 60 feet. Each creature in the area must succeed at a basic Reflex save against your class DC or take spirit damage equal to your normal Strike damage with the starshot. Creatures larger than you take a –2 circumstance penalty to their saving throws. This shot requires any ammunition that would normally be required for the weapon.

Pathfinder War of ImmortalsORC