Greater Javelin of Lightning

When hurled and commanded, it becomes a
bolt of lightning, that comes from you to a target
within 120 ft. Each creature must make a DC 13
Dexterity save, taking 4d6 lightning or half as
much if saved. Make an attack against the target
with the javelin when it reaches the target. The
target takes 1D6 + 4d6 lightning damage. It can
be called back to that last wielder as a Bonus
Action. It can be transformed 3 times a day, and regains all expended charges at dawn. The javelin
can still be used as a