His Passive allows him to blow up squishies with ease. This can allow him to get a huge lead early on and then capitalize on it, and finish the game before key enemies come online.
The follow-up CC extension on his kit with his W and E is really strong. This is what makes him really good with champions who have hard CC or slows in their arsenal.
He can keep going for regular short trades with his auto-attacks and his Q. This will allow him to soften up his target without the help of his Support, and once they are low enough, he can all-in them. He becomes safer as he builds critical strike.
His immobility is his main weakness as he has a large target painted on his head because of this. If the enemy manages to catch him out, he will die.
Due to his Passive, he isn’t really good against tanks, especially the ones who can get on his face. It will take ages for him to get rid of a genuine tank.
The Ultimate R roots him in place. This allows the enemy to both flank and focus him down with ease. Due to his squishiness, he can’t really survive for too long.
0 - 15 min
You will want to go for short burst trades in this matchup. Use your Q and W as much as you can and make sure that you chunk the enemy out.
Make sure you use your wards and E traps to save yourself from ganks. Do not push too far up, else you will become a prime gank target.
Once you get your Ultimate R, you will be able to dish out a lot of damage and get multiple kills around the map. See if you can help the side lanes out.
15 - 25 min
During this phase of the game, work with your Jungler to get some picks by using your W to CC the enemy team.
Riddle the enemy Jungle with your E traps. This will help you slow down the enemy team and detect them before major neutral fights.
When using your Ultimate R, make sure that you are not too far away from your team. Failing to do so will probably get you killed by an enemy assassin.
You must stick with your team in the late game. Do not move around the map or go anywhere unless someone is with you.
Stand towards the back end of your team near your Support. Avoid walking too far away from anyone in the late game. Getting caught out will result in the enemy being able to push their advantage and finish the game.
Watch your positioning in the late game. Focus on kiting and auto-attacking the nearest enemy champion. Avoid walking too far forward so you do not get caught out and focused by the enemy.
Level 6 a significant power spike for Jhin as he can now put the final nail on the coffin of targets who managed to escape with a sliver of health. It will also allow him to pick off enemies with his Ultimate R slow.
The first item component will allow Jhin to do a lot more damage to enemies and will bolster his fourth shot effectiveness. It will help his overall laning phase by a lot.
Jhin's Q is both his waveclear and primary damage ability. Putting additional points in it will make it more powerful, and enemies will take a lot of damage if the early Q grenade bounces kill the designated target.
Once Jhin gets two points in his Ultimate R, he will secure picks with ease and help his team catch up to enemies. The damage will also be increased.
His first ability will be maxed out at level 9. This will let him clear minions waves with ease, and the damage dealt to champions will be really high.
Jhin's damage ability will be really high during the mid-game. He can blow up squishies with his abilities and 4th shot. He will just have to ensure that he can kite around tanks.
On getting his Ultimate R maxed out, he will be able to deal massive amounts of damage and can completely decimate squishy targets. He will also be able to pick enemies for his team with his Ultimate R.
His 4th shot will hit like a truck during this phase of the game. This means that squishy enemies will never be safe, especially when Jhin is properly peeled by his team.
His damage output and kiting potential will increase in the late game due to his items. This also means that he will be pivotal towards securing neutral objectives.