I think master is allmost like normal difficulty, maybe slightly harder than normal.
I've done archer 1-25 so far without using pots+bs perks+enchant perks on master. It just gets easier everytime I gain new perks for my own skills. So I'm sure that warriors which are maybe weaker should clear it easy with using pots+bs example. I don't consider myself any pro gamer so I'm sure master for someone is even easier than for me. I have only xp from wow mostly really. I'm just avarage joe who don't like oneshot stuff.