You place a magical command on a creature that you can see within range, forcing it to carry out some service or refrain from some action or course of activity as you decide. ]f the creature can understand you, it must succeed on a Wisdom saving throw or become charmed by you for the duration. While the creature is charmed by you, it takes 5d10 psychic damage each time it acts in a manner directly counter to your instructions, but no more than once each day. A creature that can't understand you is unaffected by the spell.
You can issue any command you choose, short of an activity that would result in certain death. Should you issue a suicidal command, the spell ends.
You can end the spell early by using an action to dismiss it. A remove curse, greater restoration, or wish spell also ends it.