Harry Potter - Secrets of Hogwarts

When this Unforgivable Curse is cast, an incredibly wonderful, floating feeling comes over the victim, granting them a feeling of "untraceable happiness" and peace. In this state, the person's will is completely overridden by the caster and they will follow any command. A being of your choice within range must succeed on a Charisma saving throw at disadvantage or be charmed by you for the duration. While the target is charmed, you have a telepathic link with it. You can use this telepathic link to issue commands to the creature while you are conscious (no action required), which it does its best to obey. You can specify a simple and general course of action, such as “Attack that creature,” “Run over there,” or “Fetch that object.” If the creature completes the order and doesn’t receive further direction from you, it defends and preserves itself to the best of its ability.