Halberd +3

Halberd +3 is an enchanted weapon which inflicts 1d10+3 points of piercing damage and it has -3 THAC0 bonus. The weapon weighs 11 lbs and has a speed factor of 6. This item appears in Baldur's Gate II: Throne of Bhaal and Baldur's Gate II: Enhanced Edition. It can be bought from the Tankard Tree and the merchants Karthis al-Hezzar and Carras.

In-game description
"Consisting of a cleaver-like axe blade mounted on a staff averaging six feet in length, the halberd is the oldest and most often used pole-arm. It is best described as a cross between a spear and an axe. Magic has been used to forge this particular weapon, gifting it with enhanced abilities to slaughter foes."