Eris

Eris (Greek) aka Discordia (Roman) is the goddess of Discord and Strife. She is the primary deity of the Discordians.

Saul Goodman on Eris: "There was a banquet on Olympus, and Eris wasn't invited, because she was the Goddess of Discord and always made trouble. So, to get even, she made more trouble: she created a beautiful golden apple and wrote on it Kallisti. That means 'for the prettiest one' in Greek. It's what the K stands for, obviously. Then she rolled it into the banquet hall, and, naturally, all the goddesses there immediately claimed it, each one saying that she was 'the prettiest one.' Finally, old man Zeus himself, to settle the squabble, allowed Paris to decide which goddess was the prettiest and should get the apple. He chose Aphrodite, and as a reward she gave him an opportunity to kidnap Helen, which led to the Trojan War."