What apparant mistakes are you reffering to? What would you suggest then? :)

What should I take for Glyph of CD Reduction? cause its not in the shop anymore :D

@Alony, although Hydra is great for clearing and it can be pretty strong lategame, Kha'zix relies more on items that will have a greater synergy with single target damage. I used to build Hydra in Season 5 as the Tiamat was awesome for jungle clearing and the extra sustain was often helpful. But in the preseason, you want Death's Dance instead, as it will let you heal from your Q as well, which should be more than enough sustain, alongside your W.

About the choice of runes, I agree that both armor pen and flat AD marks are great on Kha'Zix, but personally i prefer to run 8 armor pen marks and 1 crit chance mark (need to get that RNG) :)
As for zeals, flat armor is the obvious choice for most junglers to help with the earlygame.
Glyphs, on the other hand, I feel like CDR is a bit redundant. I used to run flat CDR glyphs in Season 5, due to only getting 30% from items (20% Black Cleaver + 10% Warrior Enchantment).
Currently, you get 40% from items (Warrior Enchantment + Black Cleaver + Death's Dance) so CDR glyphs is just wasting glyph slots which could be used for MR/18 or flat MR.

The mastery page in this guide is quite similar to the one I have been using, but I have made a 12/18/0 experimental page, as I'm curious about how well Stormraider's Surge will work on Kha'Zix as it should synergize perfectly with his burst and mobility potential. I might comment more on that later after seeing how it works in ranked.

Finally I'd like to comment about Kha'Zix's evolutions. Personally I prefer to evolve E first, as it opens up for more ganks, easier doublekills in botlane, and better escape potential. The reason why I choose to wait until 11 with evolving Q is because it scales well with AD, so evolving it after getting a few items will give you a significant powerspike, and it's easier to gain gold early on from ganks if you evolve E first. As for my 3rd evolution, I think in most cases that R is superior to W.

In his defense, he says in the beginning that he will update it to season 6 ASAP cause he's seen some "buffs" (I personally disagree strongly, farming is now hard as hell).
About hydra, I think tiamat is not good anymore cause it doesn't help to clear, and so it's not a priority, though still a good source of damage later.

Why build have no Hydar, not good for Kha'zix. ????

What the hell are you talking about guys?? O.o
This is the worst Kha guide I've ever seen... It's just putting random stuff together, it has nothing to do with S6, there are soooo many mistakes!! It's a copy and paste and people say that it's the best guide EUW...
It's only good looking, I can say this as an hard Kha'Zix player.

Nice guide, looking forward to see your future update.

I will put in some closer advising on ganking in the next few days, so you might want to come back for that soon :) Other than that I'mn really glad to hear I could help you improve!

ok, I was just a little curious, when I tried the build I just found It difficult to gank in the earlygame because It was hard to engage w/out the evolved leap if I evolved claws. Other than that, the guide really helped me improve my Kha jungle. *thumbs up*.

Hell yeah man! But as I said in the guide, you can also swap out the camo for the spikes or change the order - depends on the situation in the game.

Is it ok to evolve Leap, then Claws, then Camo, in that order?