The head of this magic maul is shaped like an adamantine fist. You gain a +2 bonus to _attack and damage rolls_ made with this weapon. When you hit an object or construct while wielding _Doorbreaker_, the hit is treated as a critical hit. _Doorbreaker_ has 3 charges. When you attack or touch a portal sealed with an __arcane lock_ , you can expend 1 charge to cast __knock_ on the portal. _Doorbreaker_ regains 1d3 charges each dawn.