Deep Magic Volume 2 (p.165)
Discord
2-level Enchantment
Casting Time: 1 action
Range/Area: 60ft.
Components: Verbal, Somatic
Duration: 1 round
Attack/Save: WIS Save
Damage/Effect: Control
You disrupt the harmony between up to three creatures you can see within range. Each target must succeed on a Wisdom saving throw or become hostile to each other target until the start of your next turn. Until the spell ends, targets that failed the saving throw can’t help each other, target each other with beneficial spells or effects, or similarly work together on their turns. At the GM’s discretion, the creatures might attack each other, might compete for the tastiest among you and your friends, or similarly act against each other.
At higher levels: When you cast this spell using a spell slot of 3rd level or higher, you can target one additional creature for each slot level above 2nd.
Available for: Bard, Sorcerer, Wizard