Hi welcome to my Kha'Zix guide. Its my first true guide, and I would appreciate any revisions or suggestions.

My take on Kha'Zix is that he is a super AD nuke with allot of potential with full on AD as he has an isolated 2.4 ratio on his q.

So prepare for my build and explanations on Kha'Zix.

Here I take normal defensive runes for any carry in addition to Speed Quints and ad marks.

Here I take my normal AD carry masteries as he benefits from most of these.

For sustain early game I take Boots and three health pots. On my first trip back I usually have used the hp pots and go for a Vampiric Scepter as this provides a lot of sustain. I then take The Brutalizer for its Armor pen and CD followed by a Phage for health and a start on my Trinity Force. Then I take my boots of choice for an assassin Mobility Boots as they greatly increase MS on chasing. Then I finish Trinity Force and for sustain I take a Bloodthirster. Then I take a Last Whisper followed by upgrading The Brutalizer into a Youmuu's Ghostblade as the armor pen is a must. to maximize my ad along with sustain I take another Bloodthirster.

I focus on the q and then w as the e is more utility.
for his ult evolution's I chose q first followed by w then e as his q as it makes it a super nuke w is a good slow and e is great mid to late game as a chaser. I chose not to evolve his ult as the benefits are less how ever if you feel that you need the 40% Damage Reduction and one more use i suggest taking q then e then r as it plays well in late game.

I take Flash for an additional mana free escape mechanism. Ignite is for more killing power.

I hope that this guide helps you when playing Kha'Zix and feel free to critique as i will consider all changes.