Silver Sword

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.

Two-Handed: This weapon requires two hands when you attack with it.

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.

Proficiency: martial, longsword Source: Mordenkainen's Tome of Foes p. 89