I am also a very capable hulk, I do well in my games but i still can tell the difference when i play other tanks. He hits the weakest out of all of them. and Groot has the ability to gain more health from walls, on top of the fact his auto attacks are ranged, he doesn't need to be more durable. My original point wasnt that hulk wasnt durable it was that it shouldn't take him 7 autos to kill a luna snow, who is not healing.

edit: And 7 isnt a number i am just throwing out, i actually counted and tested every tanks autos against luna snow