Eris was the ancient Greek goddess and personification of strife. She did not have an special powers of abilities like Zeus' lightning bolt. Rather, she was the force of suffering for mankind, and she delighted in the pain of humans.
Eris' most infamous act occurred at the wedding of Peleus and Thetis, the parents of the demigod Achilles. As revenge for not being invited to the wedding, Eris threw a beautiful golden apple into the crowd of guests. Three goddesses – Athena, Aphrodite and Hera – each claimed the apple. Paris decided that Aphrodite was the most beautiful and awarded her the apple. This was the mythological beginning of the Trojan War, provoked by Eris.