Kai'Sa's foreign VOs suck megaballs!!
Latin American Spanish
https://www.youtube.com/watch?v=CSDgh1j8GgU&t=111s
Portuguese https://www.youtube.com/watch?v=Zg27ovaKgzU
Japanese (sounds like generic anime, although in their region they might like it?) https://www.youtube.com/watch?v=J6o3yIh2wg0
Guess what happens when you make a stoic champion whose VO hook is a cool accent, and then localize it to other regions. You get a stoic character with a normal sounding accent.
This will come as a shocker to some, but Spanish and Portuguese don't have Australian accents. If you are fluent you can listen to the VO yourselves, it just sounds like an average person talking a lot. Some of the lines are excessively long as well.
Fun Fact: Kai'Sa has more lines to interact with the Honey Fruit than she does with Kassadin, her father...
To Riots's credit her english VO is way better than her translated version, but this character was very hard to work with, so I don't blame the localization teams