You place a magical command on a creature, forcing it to carry out some service or refrain from some action or course of activity as you decide. If the creature can understand you, it must succeed a Willpower or become charmed by you for the duration, a creature that can't understand you is unaffected by the spell.
While the creature is charmed by you, it takes psychic damage each time it acts in a manner directly counter to your instructions, but no more than once each minute.
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.
Uttering words timed to the heartbeat, this corruptive spell induces terror even in the bravest. The pace quickens, entwining the weak in its sinister charm. Amidst the incantation, moral dilemmas linger as you question the ethics of your coercive demands.