-F U FIRE KITTARD!1!-said this brave DK, riding the pale horse, putting a horror on poor Majordomo and doing a Sindragosa Breath.
Oooooh, I need a towel.
Meanwhile, I really wish to see the DotA mechanic stolen for blood DKs. The one where Aphotic shield on Abaddon was blowing up once it absorbs the certain amount of damage, doing AoE hit.
How it can be implemented in WoW-everytime when Bone Shield loses a stack, deal AoE damage based on(whatever it can be based, on amount of damage decreased by stack+vengeance, for example). NOTE:That could be a solution over crazy-damaging Boiling Blood on low levels to hold AoE aggro for DK before DND will be able.
Or when Bone Shield stacks disappear, make a bigger blow-up.
Or even a combination of these spells, some ridiculous mechanic, like "Whenever you're loosing a blood shield with Bone Shield applied, you strike back with the (amount of damage that gone through shield+vengeance, for example), but this one may give ridiculous amount of damage on the end-game bosses.\
Edit: Honestly I've been waiting for that mechanic in MoP, because
a)Both Has WC3 Coil(ok, in DotA you can heal your allies or damage your enemies but damage yourself on half of damage/healing you've done. In WoW now we can stack shields on ally, thou we're not killing ourselves but not healing them at the same time)
b)Both has "shield" while using 2-hand weapon(blood shield==aphotic shield in terms of total damage absorption)
c)Frostmourne-based passive from DotA==Dots of Dk
d)Abbadon's ultimate=purgatory(well kinda, but DK has a potential to heal himself out through HS+ghoul snack unless he was tanking a hammer smash with his head, so in the end it's pretty same)