Surprise surprise, Yuumi sucks SHIT

Did you even try the changes?

Her new E does more healing that both charges of her old E put together, on a shorter cooldown than a single old charge, with an attack speed steroid to boot.

Take Aery, build heal/shield power instead of AP, and actually come out to trade to get mana back early. You are a huge force multiplier to your ally that has the most offensive stats with a gigantic burst heal on a short cooldown to keep them alive.

Shes still quite broken from what i see.