Nautilus Support Guide

I dont see a lot of Nautilus supports out and there I dont know why. Especially when Stonebound exists and item buffs makes him a must have in my eyes. I tried to find other Support Naut guides but all of them are very old so I decided to make my own. Feedback, suggestions, and criticisms are more than welcome.

But what do you think about Naut support? Think he is underused? Not good?