As skarner, His tankiness is really high during this phase of the game. This should allow him to soak up a lot of damage and be a very effective frontline for his team.

At level 16, Skarner will put the third and final point in his Ultimate. This will put his Ult on a rather short cooldown.

During this stage, your best bet will be to stick with your team as you’ll be really tanky and can play a vital part at keeping your team alive.
 As skarner, His tankess is really high during this phase of the game. This should allow him to absorb a lot of damage and be a very effective front line for his team. At level 16, Skarner will put the third and final point in his Ultimate. This will put his Ult on a pretty short cooldown. During this stage, your best bet will be to stay with your team because you will really tanky and can play a vital role to keep your team alive.