Dagger of Eternal SleepWeapon 5
Source Pathfinder Lost Omens: Gods & Magic
Damage 1d4 Piercing
Type Simple
Price 25 gp
Weight light
This tiny serrated dagger looks like a miniature sawtooth sabre. Until activated, it is too small and ornamental to function as a weapon, which might allow it to be passed off as a weapon-shaped decoration.
Activate 
Interact
Effect You transform the dagger of eternal sleep into a +1 Grievous striking dagger and Strike an unconscious target with the dagger.
If you are not in an encounter or otherwise threatened and you roll a hit with your Strike, you get a critical hit instead. The damage from the Strike and the bleed from the critical specialization effect do not awaken the target, though the target becomes temporarily immune to this effect until the next time it wakes up, meaning further daggers of eternal sleep awaken it as normal. The dagger disintegrates immediately after use.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
AgileThe multiple attack penalty you take with this weapon on the second attack on your turn is -4 instead of -5, and -8 instead of -10 on the third and subsequent attacks in the turn.
ConsumableAn item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
FinesseYou can use your Dexterity modifier instead of your Strength modifier on attack rolls using this melee weapon. You still use your Strength modifier when calculating damage.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
NecromancyEffects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.
ThrownYou can throw this weapon as a ranged attack. A thrown weapon adds your Strength modifier to damage just like a melee weapon does. When this trait appears on a melee weapon, it also includes the range increment.
VersatileA versatile weapon can be used to deal a different type of damage than that listed in the Damage entry. This trait indicates the alternate damage type. For instance, a piercing weapon that is versatile S can be used to deal piercing or slashing damage. You choose the damage type each time you make an attack.