You have a +3 bonus to attack and damage rolls made with this magic weapon. On a critical hit against a target in an astral body (as with the astral projection spell), you can cut the silvery cord that tethers the target to its material body, instead of dealing damage.
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.
This weapon requires two hands to use. This property is relevant only when you attack with the weapon, not when you simply hold it.