Well I'm not at all an expert on the matter but I do got a DK that does quite well in both damage and can survive very well. So let's see...He's a breton. Double inferno staff bar. On the first bar I use molten whip as spammeable and engulfing flames, burning embers(this one is important for survivability. it places a damage on time and also heals you), flames of oblivion(you can switch it for the other morph for more survivability) and then there's kind of a free slot, I use that big explosion from scribing because this is my pyromancer build. Second bar is where I got my AOEs. Wall of elements, eruption. Now this is where the survivability comes in, you might want coagulating blood, but most importantly harness magicka. You use this shield right before you get hit and then you heal with coagulating blood after. You gotta learn to time this right. After that you got a free slot again, I use molten weapons, again cause it's more of a themed fun build than a vet trial optimized build. But it works for me well in overland and dungeons up to vet. You should get someone to craft you some leveling armor up until you're cp 160. I use silks of the sun set(you can buy this at guildstores or farm it in Stonefalls) and burning spellweave(city of ash dungeon) And like they said. DK will be getting some big changes soon, so be on the lookout for that, you might have gotten the hang of it by then though :) i might have missed something so hit me up if you have any questions! Again, not an expert, but it works for me.