Shadow the Hedgehog

Shadow the Hedgehog (Sometimes just called Shadow) is a character from the Sonic the Hedgehog series. He is a fighter in Favorite Brawl, revealed in the first Reveal for Discord. His home stage is Sonic Stadium from Sonic Crackers.

Character Specific Abilities
Shadow can use Chaos Control, slowing down time and inverting the stage's colors. He can also use a wide variety of Chaos abilities.

Trivia
Shadow is one of Favorite Brawl's creator's favorite Sonic characters, hence why he's in the game.