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

Starshot

CLASS FEATURE 1

Usage a ranged weapon


You might be the only one capable of stringing this bow or pulling this trigger; either way, the ikon's shots are packed with explosive power, striking like falling stars.

Immanence Strikes with the starshot deal an additional 1 spirit splash damage per weapon damage die.

Transcendence—Giant-Felling Comet (spirit, transcendence)

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