I've tried a blood dk and everything was totally bugged
(Riposte) - Give you 0 critical strike (and its true)
(Plague Leach) - Don't work
(Dancing Rune Weapon) - Don't Work etc...
that is most important things on BloodDK
PS:
I know BDK is not for PvP but whit this spells it actually it's kind of useful and now it is totally ruined.
I will be very thankful if you do something about it :)