Wand of Magic Missiles

This wand has 7 charges. While holding it,
you can use an action to expend 1 of its charges to cast the 1st-level magic missile
spell from it. You can increase the spell slot level by one 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.