I made it to plat by playing yuumi but she still has many many issues that need attention. Fix W-E
I have 3 accounts that are mastery 7 on yuumi (all around 35k mastery when I got them) and it was torture. But honestly, I love playing yuumi even when my whole team is flaming me.
I apologize if this is hard to read. I'm not much of a writer and I just woke up
Yuumi needs a mini revert / re work. Keep the w channel but get rid of the cd on cc and make it so after she channels she CANNOT be cc'd. FFS she gets 1 shot at level one by most people. if you can dodge a cc from the support but then jhin can w you mid flight then you might as well have just stood there and spammed a troll emote cuz u ded.
I get where you were going with the w cd but it's just too much. It was bad enough before the rework with chain cc but now if you get cc'd or even silenced it goes on 5 seconds but then if it happens again it goes back on cd even if its at .0001 second so you're literally just a cat getting tossed around with 0 escape or chance of surviving since you can't r or e. And don't make me make a montage of games lost because of dragon pushing me back, baron knock up and worst of all..... my teammate using the red plant to get away while i'm mid flight to them for my w to go on 5 second cd and they just bend us over because they have 10 gap closers and cc.
For her e. Either make it so it's 2 charges again with same numbers, add some sort of shield based on the players missing hp/ap ratio and or make the cooldown .4 -1 second shorter( at 45% cdr it's 4.4 seconds which puts it on a 5 second cd and honestly the person dies .4 seconds before e comes back up). because for some reason players that could normally 2v1 are even squishier with a yuumi on them and get 1 shot and chain cc'd and one heal isn't gonna cut it. You can heal them for 50% of their bar but after that you're useless for 5 seconds. if you leave your partner for .5 seconds to get a shield they get vaporized and you get cc chained.
The biggest issue is that yuumi only has 2 abilities (3 at 6) but most supports have 3 that have multiple purposes to each one while only 1 other support (sona) doesn't have 5 forms of cc pre 6 and you just made it so yuumi has negative abilities if cc'd. You made a .5 second stun, silence or even something that wouldnt stop a normal champ from using an ability make yuumi even less than a caster minion because her w goes on a 5 SECOND CD THAT GOES BACK ON CD WHILE IT'S ON CD if the smallest form of cc happens.
And seriously what sicko at riot made it so friendly plants and dragon stop her w???