Talon new passive

So 's passive is pretty garbage as many of you know. I saw a post about this a while back with this suggestion but it didn't get too much attention. His passive is pretty garbagio, I think everyone can agree. He's more of a stealthy assassin, appearing behind people to cut their throats, going invisible, and wearing a hood. His passive doesn't really work with this. So what I suggest is this,

NEW PASSIVE [The Blades Shadow] Talon enters stealth for 1 second by scoring a kill, .5 seconds for an assist. If Talon is already invisible, the stealth duration is increased by .5 second(Stacking up to 2 seconds). Talon ignores unit collision while stealth.

With his silence removed he has become less popular, getting bullied super hard early. Not to mention at rank 1 with his W doing almost less damage than an auto attack(not sure the exact numbers). I feel this will help him out a bit with him being able to get in on team fights and not die instantly. With the tank meta assassins have been getting seriously punished if the enemy has a half decent support with cc, so this would help him out a bit, while also not making him extremely overpowered(since he can still take damage and be cc'd while in stealth). Comments and suggestions are appreciated.