@
DarkT
Biggest thing is never drop under 5 BS stacks for cheaper DS. Never spend all your RP unless you need to to live that second. Always have a backup DS saved. You have a big enough RP pool to have 3 DS in a row(generally won't want to push to have 3 because you will cap RP but you can always be close).
The artifact does... somehow help slightly. The 45 sec CD that heals for 100% of its damage dealt is good on AoE but pretty worthless single target. The artifact traits themselves aren't that amazing. Most of DK survival is really just around Haste/Crit for faster rune regen and parrying to lose less BS stacks.