1st off know that when i kill or think im going to die soon i taunt..... alot ( For the Nubudubdub's don't do it unless u know they cant kill you or close distance for a kill while u taunt), and i taunt cause its funny and i made a few dum Nub's Rush me and Die for doing my taunt :D

2nd This is still a work in Progress but i usually go "Positive Lose or Win" OR "Win" OR "Both" with this Build so
I think its Pretty Damn Good(Runes i gotta work on still)

3rd You Have about 2~4 options with building with Kha Zix; Full ADC Runner, ADC/Tanky, All AD, and Tank (Not usually a good idea)

4th Side Notes: 1) "The Light Bringer" counters Teemo Shrooms(and should be in Summoners Rift), 2) Use Exhaust with Ignite 4 tanks trouble like Sion

Pros:
~Great for ganking and After fully Built not so ****py in Team Fights Even when Enemys not alone

~Great 1 on 1; Massive Damage to alone targets (OR for Targets that get just enough out of range for a full "Q" Damage, then turn and run immediately, and repeat.)

~Easy to Poke and Run away with Boots of Mobility and Leap Evolved

~Late game Kha Zix is a HARD HITTER if you take your AD build and go get the Red Buff and then Blue Buff before going to "Gank" a Mofo or "Team Fight" for a [u]Scary Kha Zix Q'ing Frenzy[/u]

Cons:

~~OOM can happen alot if u not careful or dont have any mana regain items early game ( To STOP this Buy a "Fiendish Codex" good early/mid game so no Mana Starvation then sell to build rest of your AD Build later)

~~Kinda Squishy Early Game (and Squishy late game if ur going all ADC Runner)

~~Early game, If in a lane gets poked pretty bad by other ADC's But later game; certain items make the pokers regret coming close Especially when u have low health but 1 alone hit of Taste Their Fear and X_X DeaD)

~~Magic Mofo's will try to exploit u having high armor and AD but little Magic Resist ((HexDrinker Prevents this Early game and Building into the Maw for mid/Late game will make it so they are not that much of a threat))