Dispater's Rod of Rulership

You can use an action to present the rod and
command obedience from each creature of
your choice that you can see within 120 feet of
you. Each target must succeed on a DC 15
Wisdom saving throw or be charmed by you for
8 hours. While charmed in this way, the creature
regards you as its trusted leader. If harmed by you
or your companions, or commanded to do
something contrary to its nature, a target ceases
to be charmed in this way. The rod can't be used
again until the next dawn. +2 Ma