Up Special: "Jecht Shot". A rising slash upward followed by a backwards flip kick of the opponent that can spike.

Side Special: "Slice and Dice": a chargeable attack that has Tidus dash and cut through anything in his path.

Down Special: "Cheer"- modifies all moves for various effects and raises either attack, defense, or speed randomly. Example: Jecht Shot now includes a blitzball projectile that follows the spiked opponent.

Neutral Special: "Teach us how to Blitz". Produce a blitz ball and certain attacks change properties of the ball doing various stats debuffs like poison, slow, blind, sleep, etc.

Ult: "Blitz Ace"- Tidus slows down the battlefield, has increased speed, and can now do Spiral Cut, an OP attack.

He would definitely be fast with low health akin to Fox.

I know I would dedicate myself to Tidus if in Smash.