User blog comment:KirbiMiroir/Make up new Specials here/@comment-25096445-20160904133454

Mewtwo (down special): Barrier. It functions like a counter, but Mewtwo throws the opponent away with psychic energy.

Zelda/Sheik (down special): Transform. Zelda turns into Sheik, and vice versa.

Sheik: (side special): Chain. Gives her the chain from Melee and Brawl back.

That's all I can think off for now.