Twirling this battleaxe around suddenly forms a green acidic liquid around the blades of the weapon that won't destroy the weapon however. Twice per long rest, you can do this and strike dealing an immediate 1d6 of acid damage. You get this ability once it is attuned, this can be attuned by a Warlock or sorcerer.
Proficiency with a Greataxe allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Cleave. If you hit a creature with a melee attack roll using this weapon, you can make a melee attack roll with the weapon against a second creature within 5 feet of the first that is also within your reach. On a hit, the second creature takes the weapon’s damage, but don’t add your ability modifier to that damage unless that modifier is negative. You can make this extra attack only once per turn.
Notes: Damage: Acid, Warlock or Sorcerer, Damage, Combat, Heavy, Two-Handed, Cleave