now your probably wondering y this build y these items. i have tested items on jax and hextech gun blade plus tiamat equals pure damage. the life steal and spell vamp actualy considers splash damage to regen health on jax thats amazing. so if your thinking o wow wat a noob then go to a different guide. if your thinking i might try this it seems like a good idea, then go ahead read along.

i havent bought runes yet but nost likely im gonna do a mix of pure ap and pure ad to give health early and the extra damage

for masteries i go 24-6-0 i go with this for the needed defense and the pure power needed.
i went with increase of ap % instead of ap per level well % of ap is more helpful to me then the 18 at lvl 18. i went with havoc cuz who doesnt want that extra dmg it realy adds up. 1.5 % doesnt seem like much but the amount does make a different and especialy since it stacks with executioner and so u then get 1.5 % + the 6% makes it 7.5 doesnt seem like much but stacking your leap with empower plus the 7.5 makes it worth the masteries.

now your probbly thinkin wats with this guy gettin mercury treads instead of ninja tabi. wats ninja tabi gonna do against warwicks and malzahars ult or veigars stun wat about tarrics dazzle people dont understand how worth while merc treads r. now aegis of legion wats up with him. think it gives u health armor and mag resist plus your allies and you get the aura effect.
hex tech gun blade i dont need to explain its pretty much jax's ideal item this is viegars death cap for jax. atmas staks with your passive u get attack then more health then more attack then more health etc. wits end gives u the attack speeed plus mag resist plus the mag dmg.

i tried tiamat and it worked amazing every 3rd attack your ult does magic dmg which splashes and the splash gives you spelll vamp the base dmg gives u bak life steal. the splash goes with embower to so think of the dmg think of wat is possible