Hey guys! I'm AfroDawg and this is my first guide here and its not particularly amazing or in depth but I hope it helps.
This Jhin guide is based mainly on if you are ahead early game however it should help you get ahead even if you are behind.
Jhin is an incredibly strong champion at the moment. Being very similar to graves he has to do all of his damage in his 4 shots or something could go wrong
This guide is an 100% critical strike chance build, I have tested it and have averaged about 1400 per shot, every shot which is INSANE!

PROS

Incedibly strong ADC in all stages of the game.
If fed, you do monster amounts of damage.
Very long range abilities

CONS

No escapes, only relies on baiting people into traps.
Long stuns destroy you

THRESH

This guy is god to you, he can proc your passive W easily and you can root your target he can also chain the which also procs your W and then makes it even easier to root them. His ultimate gives you escape chances and flay which slows them and can also drag them. In conclusion he is just a great choice for your premade

Anyway it's late and I don't have much more time to flesh this guide out but I should get to it eventually.
I hope you enjoyed what there is here and I hope it helps you!