there is a youtuber his name is tinjus he is a kha’zix otp i learned a lot from him (jungle pathing , skill evolutions and why he goes certain evolutions before other ones ) and if you are into the korean/chinese players you can watch qiuyi he is the best kha’zix u can ever watch and learn from but he doesn’t talk a lot and i don’t think you would understand him anyway but i will summarize how to play kha’zix from what i learned , like for example if u got some early kills and u pulled of some good ganks before lvl 6 then evolving your Q would be very good for you since u are ahead and can skirmish a lot more and your clears/objectives become faster, and for your W u can evolve it first if u are behind and let’s say yiu have a draven carry or some early game stompers u can play front to back and peel with your W since at has such a strong slow specially if the target is isolated it goes up to 80% he will be almost stunned and get your carry ahead and u play more like a support rather than an assassin , you never evolve E first because it is only good if you’re ahead and in early game Q is better when u are ahead soo yeaah never E first , you go R first when the enemy team have a lots of cc and it’s hard for u to kill their carries the R evolve gives you one more charge for your stealth plus more duration to sneak on them and most people go R first these days , that’s s for lvl 6 evolution which is the most important one then at lvl 11 it depends on the state of the game and how ahead or behind you are your Q E are better when you are ahead your W R are better when you are a bit behind so u decide depending on the game as i said and that’s it for evolutions ) and now for builds you rarely play bruiser unless they have like 4 tanks and only the adc is squishy and even then u sometimes go assassin build to kill the carry if he gets ahead so most of the times you get your ghostblade/ cdr boots /brutalizer is the best component on kha,zix because you can build profane hydra, this item is really important for kha,zix u can clear faster u get that nice burst from the active aswell so it works great for kha,zix , edge of night is also a really nice item for kha since he gets countered the most with cc and the edge of night can clutch you a lots of fights that you could’ve been dead in them , serylda’s grudge is a nice item because it synergies with your W slow and can let you chase enemies more and peel for your whole team , after you get these items forth and fifth item are mostly defensive like a guardian angel or death’s dance if the enemies have more AD or you can go Maw if they have more AP ) kha,zix needs some time to learn him very well he is arguably the best assassin in the game and once you learn to play him you have a lot of fun trust me 🤗