Rhaast needs buffs
Blue form kayn is fine, but Rhaast needs some upgrades. His damage is pretty bad and his sustain isn't as great as you'd imagine. The only thing he has going for him is his w and unless you're ahead with him you're instantly behind. Like he needs buffs. Also please ffs increase him ms. It feel so bad to play while he runs like my grandmother. Rhaast is struggling too hard, I find while playing him and watching others play him, against tanks and bruisers... the ones he is supposed to counter..
/
/
support,
/
/ tank
or
, and a tanky toplaner he will be huge in teamfights b/c his Q and Ult will have 3 tanky targets to heal off of.
there are some champs that counter rhaast mid game very very easily. I'm OTP kayn 360K mastery.