Bard - Cantrip - Friends
Casting Time: 1 action
Components: S, M (a small amount of makeup applied to the face as this spell is cast)
Duration: Concentration, up to 1 minute
For the duration, you have advantage on all Charisma checks directed at one creature of your choice that isn’t hostile toward you. When the spell ends, the creature realizes that you used magic to influence its mood and becomes hostile toward you. A creature prone to violence might attack you. Another creature might seek retribution in other ways (at the DM’s discretion), depending on the nature of your interaction with it.
My Comments: Sooo... basically, you can take a creature that isn't hostile to you, and make it hostile to you after getting 1 minute of advantage on Charisma checks and you have to waste concentration on it.
I'm sure if I tried I could come up with a good use for this spell, but there are better options for spell choices, so I don't think I would bother. If I were to home brew this I might say the creature gets a save to figure out it was hornswogled instead of it being automatic, because advantage on CHA checks doesn't seem that great to me. Also the component of the spell? What the heck?
Bard - "I bet you'd like me better with a little rouge on, wouldn't you?"
Orc Guard - "Well, now that you mention it, it does look nice... Wait! You were trying to trick me!"