DPS arent tanky unless your are a magsorc, especially stam DPS. Do damage or take damage...good luck at doing both well at the same time. I have DK tanks that can do quite a bit of damage and I have DK tanks that can take quite a bit of damage...but I have no DK tanks that can do both to an equal degree. My magicka DK tank can do 25k single target...but cant tank anything more demanding than a vet dungeon. My stamina DK tank can take massive amounts of damage, but his dmg output is maybe 4k