This sett build is all about doing a huge, even scary amount of damage, while maintaining the unstoppable bulwark of a build that is "Mathematically Correct Sett".

I think the Math Sett build is very strong, however it hugely relies on his W to deal the majority of his damage, and in lower elo's especially, falls off because it relies a lot also on your team being there to fill in the gaps after you use your W and are vulnerable.

What this build does, is it takes the HP and AD passive from Shieldbow, the additional Low HP shield it gives, and essentially provides a similar max HP to MCSett at 4.2K HP, as well as the ability to essentially kill most champions in the game in between 4-6 hits.

This build features a huge amount of lifesteal from multiple sources, that mean while your W is down, you're going to be making sure you're not dying inbetween, especially if you just ulted into a full team.

Due to the Bruiser/fighter nature Sett already has anyway, this is relatively normal, but the extended amount of fighting time you get, is really high and using this build I have successfully had a lot of 1v4 fights where I come out perfectly healthy.

The laning phase becomes incredibly easy as soon as you get BORK, thats just normal sett, the way he's always been, but he is still just as vulnerable to ganks as always, if a little better off since he can kill pretty easily at that point, but its still good to be wary since you have no mobility, especially since stridbreaker is gone now (Galeforce isnt an option due to the stats it provides not being particularly beneficial aside from the dash)

The playstyle is dependent on being hyper aggressive and leaving little space for your opponent to outplay you.
Engage with E onto a wave or two enemies, hyper focus the target down and don't use W unless at 60% or more grit, to allow you to lifesteal more underneath the shield.

If you end up being behind, try to focus on farming until you get your third item, as Titanic Hydra is when you really start to pack a massive punch with this build. Try and focus out squishies first and carries as you're going to leave them very little counterplay.