Passive ability: Pit grit
Sett’s basic attacks alternate between a left punch then a right punch. Sett begins attacking with a left punch and will reset back to it after 2 seconds if not performing a right punch.
Sett’s right punch gains 50 bonus range, attacks are 8 times the left punch’s attack speed, deals 5-90 (+0.15% per attack damage) in bonus physical damage (depending on level).
Sett gains 0.25/0.5/1/2 health regeneration per second for every 5% of his missing health (at level 1/6/11/16).
Knuckle down
Sett gains 30% bonus movement speed within 1.5 seconds while moving toward the enemy champions.
Sett’s next two basic attacks within 5 seconds each deal 10/20/30/40/50 (+1% per 100 attacks damage ) and (+1/2/3/4/5 % of target’s maximum health) in bonus physical damage. Consuming an attack will refresh the timer.
Knuckles Down also resets Sett’s basic attack timer.
Haymaker
Sett stores 100% of post-mitigation damage taken as Grit on his secondary resource bar, up to 50% of his maximum health. Each instance of accumulated Grit decays by 30% every second after 4 seconds.
Sett blasts an area in the target direction, dealing physical damage to enemies hit. Enemies which gets hit through the center take 90/120/150/180/210 (+10% per 100 bonus attack damage)(+25% of expended Grit) in true damage instead.
Sett also gains a rapidly decaying shield for 3 seconds equal to the Grit expended. Using the ability costs 100% of Sett’s current Grit.
Facebreaker
Sett pulls in enemies at his front and back, dealing 50/80/110/140/1170 (+0.6 bonus attack damage) in physical damage and slowing them by 50% for 0.5 seconds.
If Facebreaker affects at least one enemy on each side, all enemies are stunned for 1 second upon landing.
The show stopper
Sett suppresses the target enemy champion and then dashes unstoppably at a fixed distance toward it, carrying it along for 1.5 seconds before slamming it into the ground.
Enemies within the impact area take 200/300/400 (+1.0 bonus attack damage) (+40/50/60% of primary target’s bonus health) in physical damage, which is reduced by up to 40% on edges, and are slowed by 99% for 1 second.
The dash will prematurely end upon reaching a wall that cannot be dashed through.
Early game
Start with your ability Q at level 1. Around that stage Sett is pretty strong so if you catch someone in the river or if you decide to hide in a bush and surprise the shit out of your enemy laner and grab an easy kill, it’s quite possible, however, keep an eye out for the enemy jungler if you decide to do that. The Sett is a tank/bruiser champion. And a pretty strong one at that too. So in lane, make sure to position yourself between your enemy and his minions. That way if he goes for a minion you can force him into a trade.
With Sett, the most important thing is wave management. Because most of the time you are gonna be the one initiating the trades so if your wave management is poor you will end up with a lot of minion aggro which will result in you losing the trade. When you are fighting make sure to save your W ability until the end of the fight because your W ability damage scales up with the amount of grit you have, So the best way to make use of this ability is to wait until your Grit bar is full and then by using it this way you can maximize both the damage you inflict and the shield you get when you use the W ability.
Mid/late game In mid/late game during team fights your job is to keep the enemy tanks away from your ADC and if they somehow get close to the ADC, ult them and send them back to their team. Alternatively, if you can find a good flanking path, ult the enemy ADC and smack him into the middle of your team. Also in the former scenario make sure to save your W until you take damage before using it. The Sett is also very good at destroying turrets, Especially if you have demolition. So make use of this knowledge and split push when your team is ahead and be sure that they can win team-fights without you.