The Hungry Tooth
Purchased from a horse trader in Avernus, Susan now carries this cursed weapon.

THE HUNGRY TOOTH
WEAPON 6
CURSED, EVOCATION, MAGICAL, TWO-HAND 1D12
Source Homebrew
Price 1 soul coin
Usage held in 1 or 2 hands; Bulk L
Type melee
Base Weapon Bastard Sword
This +1 (to hit) Striking (2 damage dice) magical cursed sword thirsts for wakefulness.
The four foot long double edged blade has a slight curve towards the tip. It appears to be made from dark steel but has a texture as if made from bone. Delicate engraving adorns the length of the blade and gives the impression of wind and clouds. Delicate silk cloth hangs from and envelopes the sword, seemingly attached to the cross-guard, but with no noticeable knot, pin, or rivet.
The blade activates when drawn from a scabbard. The wielder must immediately make a will save with a DC of 22. On a failure, the wielder is slowed 1. On a critical failure, the wielder falls asleep. Follow the rules for being unconscious as if under the effects of a sleep spell.
If the sword is used in combat, any creature that suffers damage from the blade must make a will save against the wielders class DC.
Critical Success The creature is unaffected.
Success The creature takes a -1 status penalty to Perception checks for 1 round.
Failure The creature falls unconscious. If it’s still unconscious after 1 minute, it wakes up automatically.
Critical Failure The creature falls unconscious. If it’s still unconscious after 1 hour, it wakes up automatically.