Kha'Zix Build Guide by KnifeMasta
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Best Kha'Zix NA
Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Kha'Zix is a powerful melee range assassin that excels at killing isolated targets, and dominating teamfights with a reset based gap closer. If you aren't afraid of taking large risks to reap huge benefits and want a champion that can effectively be played in both top and mid lanes as well as the jungle (although that won't be covered in this guide), than I highly suggesting trying out Kha'Zix - The Voidreaver. As a result of Kha'Zix's high damage and ability to be built fairly tanky, he can fit many team compositions. Kha'Zix however is best paired with high AoE CC/damage and utility champions so he becomes the "clean up crew".
High Burst Damage
Long Range Escape/Gap Closer
Powerful teamfighting with resets
Flexible build paths
Great roam potential
Mecha Kha'Zix is amazing
Rough laning phase versus ranged champions
Low ranged damage output as of 3.8 patch
Has to be melee range to output his damage
Squishy during early game
Unseen Threat (Passive)
When Kha'Zix is not visible to the enemy team, he gains Unseen Threat. Unseen Threat causes his next basic attack against an enemy champion to deal 15 / 20 / 25 / 35 / 45 / 55 / 65 / 75 / 85 / 95 / 110 / 125 / 140 / 150 / 160 / 170 / 180 / 190 (+ 50% AP) bonus magic damage and slow by 25% for 2 seconds. Unseen Threat lasts until consumed and has no internal cooldown.
Kha'Zix's passive used to be one of his most integral abilities delivering massive damage using evolved Void Spikes as the delivery system. Now it serves a much diminished role but is not entirely useless. The passive is Consumed upon attacking an enemy champion and is refreshed upon the enemy losing sight of you. This passive can be used and refreshed in conjunction with Void Assault to keep an enemy slowed while chasing them down. Is more potent in top lane as you can duck into the lane brush quite frequently and constantly have the passive up. Also much more useful in a melee vs melee matchup which is very uncommon in mid lane. Very useful for winning early trades.
Taste Their Fear (Q)
Range: 325 (375 with Evolved Enlarged Claws) Cooldown: 3.5 Cost: 25 mana
Passive: Kha'Zix marks enemies that are isolated from their allies.
Active: Deals 70/100/130/160/190 (+150% bonus Attack Damage) physical damage. If the target is isolated, the damage is increased by 45%.
Evolved Enlarged Claws (Q)
Increases range of Taste Their Fear and autoattacks by 50. Additionally, Taste Their Fear now deals an additional 8% of the target's missing health as bonus damage (max 200 vs monsters). Against isolated targets this damage is increased by 45% to 11.6% of missing health.
Kha'Zix's (Q) Taste Their Fear is now his evolution of choice. The missing health damage component regardless of isolation along with its increased range make this the skill that kills. This skill combined with the active on Muramana on an isolated target does immense amounts of damage and can easily take out 50-75% of a targets health in a single go. This skill has a very low cooldown and in a fight should be used as soon as it's off cooldown. Since the bonus damage from this skill scales with % of missing HP, that portion of the damage scales ONLY with armor penetration. An interesting thing to note is Taste Their Fear can be cast while in the animation of Leap, technically allowing you to overshoot a target with Leap while still getting a kill extending the distance traveled considerably. Generally want to pick this evolution first.
Void Spike (W)
Range: 1000 Cooldown: 8 Cost: 55/60/65/70/75 mana
Fires exploding spikes, dealing 75/115/155/195/235 (+100% bonus Attack Damage) physical damage to all nearby enemies and slowing them for 20% for 2 seconds. Heals Kha'Zix for 40/70/100/130/160 (+50% Ability Power) if he is within the explosion radius.
Evolved Spike Racks (W)
Void Spike fires three spikes in a cone.
Kha'Zix's (W) Void Spike used to be his evolution of choice. However with the removed of his passive damage on hit this evolution is clearly the worst out of the four choices, as it isn't even close between Void Assault and this. Primarily used now for wave clear and sustain as it was before, however with out the evolution it is very hard to get to the back wave without sacrificing positioning. Useful for applying a ranged slow and a stack of black cleaver, but there really isn't any interesting gameplay with this skill anymore. The nerf to not allow Void Spike to be cast while in leap has significantly hit Kha'Zix ability to 100-0 targets like he did before with ease. However this skill can often mean the difference in securing a kill. Only evolve this skill in ARAM where melee champions are almost entirely useless.
Range: 600 (900 with Evolved Wings) Cooldown: 22/20/18/16/14 Cost: 50 mana
Leaps to a target area, dealing 65/100/135/170/205 (+80% bonus Attack Damage) physical damage.
Evolved Wings (E)
Increases Leap's range by 300 and causes kills and assists to refresh Leap's cooldown.
Kha'Zix's (E) Leap in its evolution is what makes Kha'Zix the monster that he is. Everytime you get a kill or a reset you can get in and out and back into teamfights at a speed that few other champions can match. The sheer mobility at 900 range is just insane and creates a giant zone in which anything can die at an instant. Due to rather wide AoE damage radius this also becomes a rather unknown source of massive damage in a clustered teamfight. It can easily deal upwards of 600 damage to a single target if hit by multiple Leaps. Famous for the Goomba Stomp effect. Generally take this skill second as you want to be able to kill things first, however there are a few matchups in which the increased ranged can catch people off guard when taken first.
Void Assault (R)
Cooldown: 100/90/80 Cost: 100 mana
Passive: Each rank of Void Assault allows Kha'Zix to evolve one of his abilities, granting it an additional effect.
Active: Kha'Zix enters stealth for 1 second, gaining 40% bonus movement speed while stealthed. Leaving enemy vision grants Unseen Threat. Void Assault can be cast a second time within 10 seconds at no cost.
Evolved Active Camouflage (R)
Allows Void Assault to be cast up to three times. Kha'Zix takes 50% reduced damage while in stealth.
Kha'Zix's (R) Void Assault as a skill is not extremely powerful its passive that allows the evolution of his other abilities are what make this skill an absolute must take at levels 6/11/16 simply because so much power is gain through evolution. This turns leap from a decent escape into one of the most powerful abilities and possibly the best gap closer in the game. Its physical use is far less exciting but none the less useful. In close trades the stealth can disengage the fight momentarily allowing you to get cooldowns and Unseen Threat back so you can strike back. The speed boost and stealth combo makes juking in and out of brushes and effective way to escape even if leap is on cooldown, and also chasing fleeing enemies a breeze. The evolution adds a third and grants 50% damage reduction while in stealth. These new properties help make Void Assault an even more potent chasing ability but also allowing Kha'Zix to survive through massive AoE based fights. An amazing skill to aid in duels. Should be taken 99% of the time as the third evolution.