Stiletto of Demarchess

Stilletto of Demarchess is an enchanted dagger +2 which has the ability to stun an opponent with a 20% chance upon every successful hit for two rounds. The victim can only make save vs. death to avoid getting stunned. The weapon inflicts 1d4 +2 points of piercing damage, has a -2 THACO bonus, it weighs 1 lbs and it has a speed factor of 0. This item appears in Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition. It can be found in Lavok's Sphere, where one of the cannibal halfings drops the weapon when killed.

In-game description
"Stiletto of Demarchess +2 Most who take up the trade of murder for hire do so for reasons other than personal pleasure, but not so the Lady Demarche. She took special pleasure in the torture of her targets...which is why she made this dagger. With but one touch of its polished blade an opponent was rendered immobile, incapable of so much as screaming, yet the victim could watch and feel all that happened to them. While her opponent was thus held, the Lady would slowly bleed them, sometimes taking several hours before allowing her subject to succumb to the final agony of death. The Lady finally fell victim to her own evil; disarmed by a rival and struck by her own Stiletto her fate was soon sealed."