Scroll of Lightning Globe

You hurl a 12-inch-diameter sphere of
energy at a creature that you can see within
range. Make a ranged spell attack against
the target. If the attack hits, the creature
takes 7d8 thunder damage.
This item is only able to be used one time,
and once used will turn to ash in your hands.
If duplicated, the empowering effect on it
will translate the spell into the base version
of the spell it is derived from.