dragon bone shillelagh

A club carved from the bones of an adult white dragon, some semblence of the dragons magic still beats within it. The wielder gains a +1 bonus to attack and damage rolls and can use a bonus action to inflict an additional 1d8 cold damage to the target using a charge. The item has 3 charges and regains these charges every morning, if you use all the charged roll a d10, on an 8+ the item loses one charge permanently. This weapon counts as a magical weapon for bypassing weapon resistances.

Proficiency with a greatclub allows you to add your proficiency bonus to the attack roll for any attack you make with it.