a champion idea based on luck

so I was thinking about a cool new champion idea and as much as this one probably wouldn't be very practical with out lots of RNG I think that it's at least worth putting on here. when I say lv 5 I mean the ability level not the champ level btw.

name (placeholder name) : lucky ray

design idea: a yellow ninja with a few dice on string hanging from the head

passive: 40% chance (perhaps to high?) to deal double damage every two auto attacks

q: throws out between 5 and 12 ninja stars(based on luck) each dealing regular damage (AD) which will scale by level maxing out at 400 damage per star on lv 5 that can be made even more so by items. each star targets a nearby enemy at random but only 2 can be on an enemy at once in order to keep it from being a one hit kill on champions. cool down: 7 seconds but on lv 5 8 seconds

w: passive: adds 10% chance to the passive ability which is increased to a +20% on lv 5. active: increases attack and movement speed for 5 seconds cool down: not decided

e: passive: adds a between 5 and 15% life steal to each attack active: next attack is ether a 2 second stun or 2.5 second silence (scales slightly to hit 3.5 on the silence and 2.5 on the stun)

r (ulti): throws a ninja star that deals scaling true damage to everything it hits and leaves a 5 second burn on champions before exploding into a smaller version of the q upon hitting a wall/turret/nexus/general object cooldown: 350 seconds (maybe less but needs to be large)

basically this champion would be based on auto attacks having cool passive effects and RNG on the q and e. as well as an ulti that can kill multiple champions if used well. he however would suffer a large lack of bulk like most ADC type champions meaning his stat spread would look something like that of your typical ADC with high attack low bulk and decent speed. however his passive lifesteal should help to make the bulk less of an issue in solo lane and his q would really help his farming to keep him up. most likely a laner however a jungle build does seem possible due to lifesteal and attack speed build seeming possible

some items he'd probably like:

idk maybe this is to in depth or OP or something