As sett, Can be kited to oblivion, especially when he is against a ranged carry with some form or dash or peel.

Misuse of his W can get him killed as it is his only form of damage mitigation. He can’t escape easily if someone all-ins him after he uses this ability.

If the enemy is smart, they will avoid grouping up during fights. This will prevent Sett from using his Ultimate R effectively, as he won’t be able to land a lot of damage or slow multiple members of the enemy team. As sett, It can be trapped to oblivion, especially when it is against a varied portage with a shape or dash or coat. Misuse of its W can cause it to kill because it is its only form of mitigation of damage. It cannot escape easily if someone includes it after using this ability. If the enemy is intelligent, they will avoid regrouping during the fighting. This will prevent Sett from effectively using its Ultimate R, as it was not able to land much damage or slow down several members of the enemy team.