Master Manipulator: Achievement PSN of South Park: The Fractured But Whole

Charming / Confusion abilities are unlocked late in the game when you get access to all 10 power classes.
The Plantmancer's ability 'Sweet Scent' can charm enemies. This means they will fight for you and attack other enemies.
One of your buddies 'Professor Chaos' also has a confusion ability called 'Chaos Confus-O-Tron'.
Regularly use both of these abilities on your enemies. When one enemy kills another while under the influence you earn the trophy.