Wand of Lightning Bolts

This wand has 5 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
3rd-level version of the spell. You can increase
the spell slot level by one for each additional
charge you expend. The wand regains 1d6 + 1
expended charges daily . If you expend the
wand's last charge, roll a d20. On a 1, the wand
crumbles into ashes and is destroyed.