@Gypsylord small Jhin buffs/qol changes.
Passive: This is fine but maybe make the bonus movespeed add up to show the total movespeed you get from crits(right now it shows (10%)(X% based on attack speed)).
Q: If Jhin uses it on a champion and it wont bounce on the initial cast it procs deathfire touch as if it were a single target ability.
Also if Q killed an enemy on the initial cast and it won't bounce it refunds some of the mana cost. This would be for early game last hitting under turrets.
W: it's fine
E: could be a little more reliable but oh well.
R: If you kill an enemy with the 4th shot instead of a flower blooming on the corpse maybe a mini white tree?