Uthanda-Ha's Sudden Concord

You attempt to charm a group of people you can see within range. Everyone in a 30 ft. radius must make a Wisdom saving throw, and does so with advantage if you or your companions are fighting it. If it fails the saving throw, it is charmed by you and every other creature that also fails the saving throw, until the spell ends or until you or your companions do anything harmful to it. The charmed creature regards you and everyone else charmed by the spell as friends and will not seek to harm you and everyone else that is also charmed by the spell. If a creature failed the saving throw it does not know that it was charmed by you but knows that a spell was cast on them. When the spell ends, the creatures know they were charmed by you.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the spell lasts for 1 hour for each higher slot used. If cast with an 8th level slot the spell lasts for 24 hours, if cast with a 9th level slot the spell lasts for a week.