So an ADC deals % missing health as magic damage
Kai'sa that is ... I know, my fault for not knowing her kit that well. I should be used to this with Vayne, Varus, and, to some extent, Mini-Gnar.
However, I have to ask how one effectively itemizes against her then if playing a juggernaut? It seems like she builds Guinsoo's in its current iteration and gets a massive power spike. Which leads me to think Warden's Mail and Tabi, but with that passive dealing magic damage as opposed to physical damage, one cannot simply build armor to mitigate her damage.
or
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Juggernaut will have a hard time against Kai'Sa because she can kite, poke, and is a bit mobile.
It might be more usefull to take item that provide you a mean to catch/stick to her, survive while catching/when at melee, and kill her.



However, heavy defense items will still be needed.




