Kha'Zix Build Guide for Wild Rift

Unseen Threat (Passive)

Enhances the next attack against enemy champions to deal additional damage and slow for a few seconds. This passive is active when Kha'Zix is not seen by the enemy and it lasts until it is used, even after being seen. Unseen Threat is refreshed when the enemy team loses sight of Kha'Zix.

Unseen Threat can be active multiple times mid-fight by hiding in brushes or by using Kha'Zix's ultimate, Void Assault. If you hide in a bush and you realize you don't have your passive, it means that the enemy has vision of you (most likely a ward). To utilize your passive the most, make sure you auto-attack after using abilities, especially your ultimate as the slow will make it hard for the enemies to escape.

Taste Their Fear (1)

Slashes with his claws, dealing physical damage. If the target is isolated, the damage is increased. An enemy is isolated if the enemy has no allied champions or minions nearby. Taste Their Fear is Kha'Zix's main damage source. Due to the bonus damage on isolated targets, Kha'Zix is great in a 1 vs 1 situation and can solo kill targets really easily.

Evolve-Reaper Claws - This evolve gives attacks and Taste Their Fear bonus range and a percentage of Taste Their Fear's cooldown is refunded against isolated targets.

Void Spike (2)

Fires spikes that deal physical damage and heals himself if he is within the explosion. In the early game Void Spikes are crucial to keeping Kha'Zix healthy in the jungle and the explosion can help a lot with his jungle clear speed.

Evolve-Spike Racks - This evolve fires two additional spikes and slows enemies for a few seconds. This evolve is great especially during team fights to poke down the enemies and slow them to engage or peel for your team. When face checking with no vision and you think someone might be there, use your Void Spikes first to see if there is an enemy there. You will know someone is there if the explosion goes off.

Leap (3)

Kha'Zix leaps to a target area dealing physical damage. When in the jungle clearing camps, you can use leap to get to the monsters faster and to deal more damage. This is beneficial and helps a lot when trying to clear really fast.

Evolve-Wings - Kha'Zix gains extra range on Leap and its cooldown is reset on champion takedowns. This evolve is fantastic during team fights and when trying to pick off enemies. When you get a takedown you can easily jump back out of a fight if low or jump further to try and kill off the rest of the enemy team.

Void Assault (Ultimate)

Kha'Zix becomes invisible and gains movement speed. Void Assault can be cast again within a few seconds after the first cast is complete. It offers Kha'Zix lots of utility. You can use it when ganking to reduce the distance between you and the enemy, to move around during team fights and approach from another position, or to reset your passive to get more damage.

Evolve-Adaptive Cloaking - Invisibility duration is increased and can be cast up to 3 times. This helps you move around team fights more or to keep you alive when trying to escape and dodge skill shots.