Yuumi is so OP

Personally, after seeing how she had her q duration way shortened, e stacks removed I lost interest in playing yuumi and don't find her as fun anymore. Looking at statistics though, it seems that she is quite on the weak side, sitting at ~46% winrate according to op.gg, although she can still definitely "work" but may be outperformed by other supports in my opinion therefore not overpowered. If you're having trouble with her I suggest buying items that cause grievous wounds (40% reduced healing from all sources) such as Morellonomicon or Executioner's calling to mitigate her burst healing abilities, furthermore you could cc her if she gets off her teammates usually resulting in a rather easy kill considering how squishy she is.