how can you have the reflexes for this if ..... ''+ VIDEO of great SIV HD'' look

** In Siv's video go to 0:30 sec to Do not waste time!**

1. look this https://www.youtube.com/watch?v=VlRClplNnPE

2. if you want look also this https://www.youtube.com/watch?v=FbXzM40LaR8

3. and also this https://www.youtube.com/watch?v=QzrEgzjI65k (They can't just kill her with 50 hp)

then read the post

How Can we have the reflexes for this if even nexus didn't targetted katarina for her E?? The animation is to fast to create a real counterplay. Even if katarina is stunned immediatelly, for the unpredictability of her E, she will inflict something around 1k of damage to all team. And if she get a kill, problably will be game. Can we have a larger window to react pls???

ty all and bye

Edit: maybe I'm wrong, but I seem to remember that Champs as rengar, in season 3, were nerfed for the jump(Rengar appears immediately, instead of in the middle of the jump) to increase the reaction window, so it seems in order with the current of thought of Riot. I'd just like a larger window to react

Edit 2 :I know, katarina's R has a channeling, but in the third season the ability was buffed so it does double damage during the first second, that is about 400 at most rank( and the time of the channel was beeing extended to 2,5 sec) which is enough to destroy the support or the adc and start with rests . Katarina's r had been created with that base damage and that crazy scaling because, if the enemy had not done something to block it , they would have taken heavy damage. After the change in the distribution of the damage, the burst is so high that for anything in the world she would remain blocked for the total duration of the R, turning what should be an ult with a channel into something used only for the burst.