Halberd

Heavy: Creatures that are Small or Tiny have disadvantage on attack rolls with heavy weapons. A heavy weapon’s size and bulk make it too large for a Small or Tiny creature to use effectively. Reach: This weapon adds 5 feet to your reach when you attack with it, as well as when determining your reach for opportunity attacks with it. Two-Handed: This weapon requires two hands when you attack with it. This property is relevant only when you attack with the weapon, not when you simply hold it.