27 voted to skip tear and go straight for build , brutalizer or BT w/e
only 17 said tear first. but i disagree ,
after playing the last 20+ or so games with kha zix .. i've won almost all of them. Lost at least 5 though,
but i've decided that tear is definitely the way to go, top (even more for top) or mid, specially if you can't get a hold of a blue buff
if you can get 700 real quick and buy it, it help SO much, you really go OOM instantly with his poke so it's almost necessary i feel like.
also when it hits 750 charges and it turns into muramana the damage is great in addition to your BT and black cleaver. It's good to have like , unlimited mana and that extra damage on all your moves+AA.
Last item can be a warmogs or GA whichever you like (i prefer more HP it discourages people from attacking you).
full build i like , situational boots , ninja / merc / or lucidity (usually not cd for me i like the extra armor or MR he dies really easy)
long swords + hp gem --> black cleaver
vamp scepter --> BT
start building LW (grab muramana if you can, should be done somewhere around here)
frozen heart is great but i feel that he really needs some sort of HP boost, it's really too low for end game with this build.