Halfus 10man blood dk
Is this in combinationwith the Nether Scion? If so, this is normal for all tanks and requires frequent tank swaps or other strat. If this is not with the nether scion, what is your current avoidance and how do you use your CDs and blood strike?
Halfus is a front loaded fight. It actually gets easier the longer it goes. Therefore, heroism/bloodlust, tank CDs and healer CDs should typically be used early in the fight and probably rotated. Beyond that, an armory link would help.
"he doens't need healing, he doesn't need healing, he doesn't nee-WHAOSHIT!wtf was that man!". Please stop leaning on TDR. -Teng