Still trying to understand about LeBlanc...

Kassadin lost his silence, got channel cancel and magic shield.

Talon lost his silence, got a strong slow for short duration.

LeBlanc lost her silence, still trigger nerfed and still chain nerfed.

I know she is supposed to have more burst than the 2, but she is single target assassin that basically requires to wait the cd for W or E so that she can use her Q again, while on the hopes of surviving or doing nothing untill the 10 seconds needed so that she can try to make her Q deal damage. It means she is the mage most heavily countered by shields and heals.

What i'm saying is, give her something in return of losing the silence, a move speed increase on trigger, a small cd reduction on trigger, anything, even if it costs some of the damage. Just increasing the duration of her W is not going to fix the utility she lost over the nerfs. Even harrassing became dangerous because the chain takes too long to trigger.