Taliyah
I'm not the one to ever seggust nerfs point blank to champions but Taliyah has been out for a bit and she needs some changes.
Her R duration per rank should be cut by 2 seconds each rank so 4/5/6 from 6/7/8. Seeing taliyah's straight divide a whole team in the middle of a fight. Whether she messes up and puts her own ally, especially a non dashing champion, in harms way all because she messed up her R. Is not really fair. Then if she successfully pulls off her R and is able to cut off enemy champions then her team can capatilize upon it. But there isn't much breathing room for the enemy caught or the ally. The duration lasts way to long for any counterplay on either side.
Lastly her Q. 120% AP ratio when she hits all 5 volleys? Which is easy since she buys rylais to slow enemies with each hit. So she's getting buffed to really spam her Q. Her ratios or base damages needs looking at. The EQ combo is basically one shotting people without using her W. Granite her ult does no damage. But that's broken and needs some tweaks.
I wouldn't say she's over powered But after rylais she is abit out of control in terms of her potential to outkite, and burst. Shes building quite tanky, so bursting her back is hard. She is pointblank tower diving people for kills. Which isnt to bad considering many mages tower dive. But she lacks risk / reward building tanky. Her damage should be looked at since she's building tanky. She shouldn't be bursting people with 1.2k+ health between rylais, roa, liandrys. She should hit hard. Not 100-0.
But she needs a definition in the game whether it be she has early game spikes and falls off late or late game monster with weak early. Either her Q should be base damage orientated or scaling orientated. Somethings gotta give... Her R above all needs changing to the duration and so does her Q.