Well I don’t know if my answer is relevant anymore. It looks like sentinel is leaving you.
Well, I’ll answer it anyways in case he comes back to you. Sentinel is a very underrated tech and has been a fan favorite of mine since I pulled him. Sentinel is ridiculously tanky and has some of the highest armor rating in the game.....Overall sentinel is a tanky beast with really solid utility and damage. Definitely worth taking up.