Wand of Lightning Bolts

(requires attunement by a spellcaster)
•This wand has 7 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 15) from it. For 1 charge, you cast the
3rd-level version of the spell. +1 spell level for
each additional charge you expend.
•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 crumbles
into ashes and is destroyed.