This is my first guide on Mobafire, so Im kinda new to the whole guide making thing. I hope you guys enjoy my guide! :D

Pros

+ Has good burst + One of the best duelists in-game + Mecha Kha'zix is awesome + Has a very good escape

To be able to become a good Kha'zix player, one has to make use of his kit to kill his enemies. Be sure to always go in and out of bushes after proc-ing your passive so that it will refresh. Kha'zix is also good at killing isolated targets so during the mid-game, look for isolated ADCs or anyone else squishy enough for you to burst down.

Cons

+ Very squishy early + Can be countered by CC + Hard to master + Is item dependant

While being a high mobile assassin, Kha'zix has his limits. If the enemy team focusus you down with all their CCs, you won't be able to jump in and kill their carry and you would probably die yourself. This however can be countered a little by getting merc threads for the tenacity that it gives.

Once again, these runes provide the best of both AD and ArmorPen so as to do as much damage as possible throughout the game.

These will be your core items, the brutalizer will give you a huge damage boost as well as some needed CDR while the Mallet gives some decent survivability and a perma-slow. The Last Whisper is almost always bought as every team has to have some armor.

I recommend getting the GA immediately after your core items. After the GA, I like to live life dangerously and get a BT even if i may need a Maw xD.

I usually go for the CDR boots, but if their ADs are fed I might go for ninja tabi and if they have tons of cc I might go for merc threads. For enchantments i usually get homeguards for the awesome speed boost whenever i recall.

Always max Q as it is your highest damaging spell. Max W 2nd as it provides decent sustain and utility and some damage. And needless to say, put a point in your ult at levels 6, 11 and 16 as they will unlock an evolution point which you can place into a certain skill to make it better.

I almost always evolve my Q as it will increase the damage output of the Q significantly. Not to mention the % missing health damage to finish off wounded enemies.
I used to enjoy evolving this and poking the enemy down, however this is no longer good as the nerf to the w not being able to apply the passive made it a weak evolution choice.
This skill is phenomenal, it can be used to close gaps between yourself and squishies or to escape a fight gone wrong. Evolving leap will cause the range to increase exponentially and it will reset every time you get an assist or kill.
Ever since the W nerf, this has been my final choice of evolution when i play Kha'zix as it allows me to take a whopping 50% lesser damage and it also allows me to use it a 3rd time and to proc my passive over and over in a prolonged fight.

Kha'Zix is a high burst and high mobility assassin that can be built fairly tanky yet be able to 2 shot the carry. He can be countered by CC and is very weak early. He can roam and take down isolated carries if they're not careful. Well, this is the end of my guide, hope you guys enjoyed it as much as i did. Please leave me a vote and thank you for taking a look at my guide!