I've never played on master and don't plan to but if the OP plays on adept the wards are very useful. You may disagree but to each his own.

I do play on adept, but want to higher the difficulty. No problems with any enemies besides spellcasters to be honest. Will have to boost my character with some magic resistance and try harder. Expert, if not master... Call me dumb, but I thought there are only elemental resistances. At level 43, I didnt find any magic resistance gear

heh, at this level you would think I visited at least all the cities, and I was only in Whiterun, Markarth and Winterhold... Love to explore every inch of land I go to.. Then grab anything I can and sell it/keep it. Anything left, I go back to pick it up.
Funny how I want to complete quests. I go for it, but something else catches my interest and bam, another quest in progress...lol. My next quest however will be adjusting difficulty level and finding some real protection against them cheeky magicians! Thanks for great tips everyone!