pf2e.fyi
From Pathfinder Impossible Magic, which isn't enabled.

Hundred-Moth Caress

ITEM 8
Price 475 gp
Usage held in 2 hands
Bulk 2
Category martial
Group polearm
Damage 1d10 slashing

This +1 striking scythe's handles are made from a dull gray wood of bone-like consistency, and when you slice with it, a fluttering gust of hundreds of moths' wingbeats fills the air. If you're a devotee of Urgathoa, you can use this scythe as a divine locus, and with every Strike, it exudes a pallid cloud of powdery dust.

Activate—Pallid Reaping (concentrate, manipulate, spellshape, void)
Frequency once per round

Effect You deal 1d10 void damage to yourself. This damage ignores all resistances and immunities, and you take it even if you would be healed by void effects. If your next action is to Strike with the scythe or to Cast a Spell with the disease or void trait, that Strike or spell deals additional void damage equal to the damage you took.
Pathfinder Impossible MagicORC