Mid game (around 25 minutes) he oneshots you or two shots you. I played against a kayne that missed every single skillshot, only to have him ult me and aa me and I died. All he needs is duskblade and yomuu's and you're done for.
Assasins in general?
If the champion one shots you mid game, you probably did something wrong in the early game, or the enemy played it out properly, but in your post he apperantly missed everything and one shot you, so you called him "broken" but maybe he's just ahead, and better.
If he one shots you at 25 mins you are very far behind like if he hits you with q(both hits) and his e with duskblade it does about 1300 and that would be less since that is the damage before armor a adc will have at idk 30% physical reduction probably more but 30 is easier to do math with so the actual number would like around 900. It also seems like your talking about blue kayn and blue kayns ult will always do less damage then red kayns and there ults will never one shot. Just because a champion snowballs does not mean there op and there are better snowball champions in jg so no he is not op.
