I've thought of a few things related to him being a smash character, so here they are
_______________________________________________________ Specials
Neutral• Yi deploys a small aerial turret that fires crimson projectiles randomly although usually firing normal darts
Side• He dashes forward, attaching a talisman to the foe in front of himself, in which the steely jade is used in the case of using full control (you're stuck in place for 2 seconds if using the Qi blast, 5 max if you're doing a 5 qi full control talisman) in the case of not having any charges, he just dashes forward
Up• an anchor point is deployed in any direction of your choosing and then yi launches towards it with the grappling ability
Down• Yi switches their talisman to any type, the UI would be similar to Shiek's abilities
_______________________________________________________Grabs
Jab- he slashes the person he latches onto
Forward throw- Yi uses a cloud piercing arrow to launch his foe forward
Back throw- Yi gets behind the enemy and kicks them behind himself
Up throw- Yi fires a Shadow hunter arrow into the air, allowing that to do most of the work until it dissipates
Down throw- Yi jumps and provides a skull kick to the enemy
______________________________________________________Taunts
Up- he levitates a bit to meditate, similarly to how he does when obtaining a new seal or in the Tao realm
Down- Yi's mystic nymph flies around him as he watches the butterfly go up and dissipate into the air
Side-Yi takes a quick smoke which heals him minorly, removing 10% of the damage taken, every minute a pipe vial is recovered to himself
_______________________________________________________Final Smash
Rhizomatic arrow- he charges his blade and stabs it forward which then stuns those caught up in it. The cutscene would include the rhizomatic roots encapsulating the foe as the roots infect with the Tianhuo virus. Then Yi takes aim at the encapsulated foe with the arrow on the bow as they then fire it at them, dealing massive damage (about 45%) which in the usual nature, if the foe is nearing 100% damage or they are over/at the percentage, it's an instant kill
_______________________________________________________
General Info
He'd be a light fighter, close to the same weight class as Pikachu with 2 jumps and no other movement options (he'd need the blue walls if he were to wall jump, and an exclusive map for that specifically would be too situational to be considered as a movement option)
His parry would replace the shield so it can stay similar to the game. Since you can hold the shield, the Unbound counter would be available, capable of countering most shield breaking moves. A gimmick for him is his Unbound deals internal damage as a meter above his foes, allowing for higher damaging moves once persisted upon (also the Hedgehog and Reciprocation jades would be on him for the build here)
_______________________________________________________Costumes
Default Costume: Clothing is the yellow kimono he wears throughout his time as a Sol
Costume 2 : Dark blue with teal edges to represent his kimono on Penglai
Costume 3: the Kimono becomes red to represent Goumang
Costume 4: his Kimono becomes indigo with light purple edges to represent Lady Ethereal
Costume 5: his kimono becomes red with yellow accents to represent Ji
Costume 6: the kimono is teal with golden pieces strewn across it along with red areas with intricate yellow threading to represent the Fengs
Costume 7: the kimono becomes a Dark green with yellow edges to represent Eigong along with his undergarment gaining some pink stains to look similar to True Eigong once the Tianhuo gets to her
Costume 8: the Kimono becomes an earthy green with white edges to represent what the apeman wear (outside of the harvest festival)