Pixie Prick

Pixie Prick is an enchanted dagger +3 which can make enemies fall asleep for two rounds when they fail their save roll vs. poison. This item appears in Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition.

In-game description
"Pixie Prick +3 The Pixie Prick almost appears to be a toy, so fine and delicate is the workmanship of the blade and handle. Yet when wielded and the command word 'Sleep' is intoned, the tiny dagger glows with a blue nimbus. Upon striking an opponent the Pixie Prick releases a surge of powerful magic, potentially inducing a deep slumber. Legends say that the ancient sprite knight, Alfonso de Noble wielded the Pixie Prick, not as a dagger but as a two handed sword."