Welger's Wand of Lightning

Wand, rare (requires attunement by a Spellcaster).
The woodworking wand wizard Welger spent his life making wands from the wood of the energy trees growing around his tower. This wand was his best work and has qualities that set it apart from lesser wands.
This wand has 8 charges. While holding it, you can use an action to expend 1 or more of its charges to cast the lightning bolt spell (save DC 16) from it. For 1 charge, you cast the 4th-level version of the spell. You can increase the spell slot level by one for each additional charge you expend. The wand does an additional point of damage per damage die rolled.
The wand regains 1d6 + 1 expended charges daily at dawn. If you expend the wand's last charge, roll a d20. On a 1, the wand casts lightning bolt towards you then crumbles into ashes and is destroyed.

Item type

Weapon, Ranged