Military two-handed melee weapon
Cost: 25 gp
Damage: 1d10
Proficient: +2
Weight: 12 lb.

A halberd’s heavy head makes it a devastating weapon, while its long, wooden haft grants it the reach needed to deter would-be attackers.

Reach (With a reach weapon, you can attack enemies that are 2 squares away from you as well as adjacent enemies, with no attack penalty. You can still make opportunity attacks only against adjacent enemies. Likewise, you can flank only an adjacent enemy.).

Axe (Axes are weapons that have bladed, heavy heads and deal vicious cuts. An axe’s weight makes it fine for delivering crushing blows.).
Polearm (Polearms are weapons mounted at the end of long hafts. All polearms also fall into another category of weapon, usually axe, heavy blade, or spear. Polearms are reach weapons.).

Published in Player's Handbook, page(s) 218, Mordenkainen's Magnificent Emporium, page(s) 21.