Super Smash Bros. Lore!
This is not official, it's some weird stuff made up by me and my friends
Shulk
Shulk is the right-hand man of General Ike, second-in-command of the Defenders, and the estranged twin brother of Cloud. He wants to get revenge on the Nine Hells (for having the souls of his parents) and the Three Heavens (because Kirby personally stole a cake he baked). He can see the future though, and knows that he will never be able to convince Ike to invade either the Heavens or the Hells. He defected from the army of the Three Heavens after Kirby called his mom "voluptuous".