Thia's Elegant Charm

You attempt to charm a humanoid you can touch; during combat, make a melee spell attack against a creature you can reach. It must make a Charisma 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 until the spell ends or until you or your companions do anything harmful to it. The charmed creature regards you as a long time friend.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the duration increases by an hour per spell slot.