It’s too early to say with much certainty, but W(You And Me!) seems like an ADC’s dream. You can AA, while untargetable. If you combine this with a high mobility tank support, this sounds like an unkillable team melter. Again, it’ll depend on her ratios and stats(especially attack speed), but does anyone else see this working?
You can't AA while attached to someone.
Her W doesn’t allow her to auto attack while attached, only use her abilities.
*Yuumi
Well there's a rioter that has the name AD Yuumi soooooo im going to say it's very good.
Even if she could AA while within someone...
Champions like these 
exist to make sure tanks are not playable.
And conquerer.
I realize now that I was wrong on the ability to AA while attached, but I will say it’s more viable than
