I agree a "pure" warrior build is difficult to survive ... but WHY have gamers THE wish to build up a "pure" warrior ?
Is it because a "warrior" feels more Sturdy/Venturous to play with ?
Ever tried a new "combination" of skills from different classes ?
A combination that is magnificent to play with ? No ?
Well, try a Warrior Priest ! It's so fantastic fun & smooth to play and the battles are most of the time fast over !! That's not always what I want because I love the combat in DKS

!
The only skill from the mage tree I also use (via bosot from yewellery item(s)) is Mana Efficiency. No ranger skills, no bow or Shield, only Two Handed Flamberges
Plenty of combinations of skills, but one truly nice comb. is Rush Attack + Charm/Blind or Rush Attack + Thousand Strikes/Wirlwind/Fatality ...
Or Hide in Shadows > run to a Healer > Charm him and fight on his side !
And so on, and so further ... Never reached my Battle Tower so fast (only level 17 after killing Laiken, still L17!) as this time playing a Warrior Priest (used Charm many and do all the mindreadings, don't choose the extra XP by Quest Rewards ...