So I'm seeing Yuumi after release has just below a 30% winrate, and after playing her I can understand why. Her Q seems a bit weak and not as controllable as you think. The Q animation could be smoother, because I think I'm moving it to follow my mouse when attached and it goes a completely different way. Her autos feel weak as fuck, even Janna actually does decent auto damage. Her heals could also use a **slight** boost. The only things that feel good in her kit are her W and Ultimate. If I'm missing anything, feel free to add to the list, this is just a first glance observation.