Ironfang

You gain a +2 bonus to attack and damage rolls you make with this magic weapon. When you hit, the target takes an extra 1d8 thunder damage.
Shatter: Ironfang has 3 charges. You can use your action to expend one charge and cast the 2nd-level version of Shatter (DC 17). Ironfang regains 1d3 charges at dawn.