Oh i know you didnt ...
You wanted only people to nod that this battle is overwhelmigly hard ... well, "it" is not ... you just made it so hard. :-/
I'm sorry, but I have to disagree and say that "not using every trick you have available to you" isn't an example of "making a battle hard for yourself." I personally think that if the advice for a battle can be summed up as "use every trick and buff you have available" then the battle is hard. You can disagree about it being overwhelmingly hard (I for one think that it is definitely too hard for a level 4 encounter and even at level 5 I suspect that for an average player it'll still be one of the most challenging fights in the area) but it's still definitely hard. I'm someone who has played a lot of crpgs and consider myself of average skill with them, and I've given up on trying that combat until I'm at least level 5.