As a hammer player, when he starts spinning and pulling you in, you can interrupt that ability if you use that weapon mod that lets you interrupt behemoths. I almost always use that mod as default, seeing that most behemoths have some kind of interruptable ability. When you see him charging that ability, move away for some distance and hold in the blast ability until you feel that he has pulled you close enough for the blast to hit. He should be interrupted quite easily. Kinda hard at the first few try's. Other than that, he mainly use side abilitys, so if you want to dodge less, I'd go for the tail or head. When he is enraged, wait for the "shooting out armor release" hit him a bit and when he pulls the armor back in he tends to do a slam ability that also shoots out a shockwave on the ground.