Weapon of Boosting (5e Equipment)

Weapon (any), uncommon (requires attunement)

This weapon has 3 charges. While wielding it, you can use a bonus action to spend charges to give the weapon a bonus to attack and damage rolls for 1 minute. The bonus equals the number of charges you spent. It regains 1d2+1 expended charges daily at dawn. When you expend the last charge, roll a d20. On a 1, it becomes a non-magical weapon.

If you expend all two charges at once, roll a d10. On a 1, the weapon overloads with energy. It explodes, and all creatures within 20 feet of it when it explodes take 1d8 force damage.