Post Number 245 on this thread "We've just deployed a hotfix that reduces Saurfang's blood power gain from ability damage back to 3.3.0 values. There was also a minor visual range issue with Blood Nova that was fixed."
Quackers - Rogue (Main)/DK Tank (Alt)/Resto Druid (Alt Alt)/Hunter (Alt Alt Alt)/Disc Priest (Alt Alt Alt Alt)/Warrior Tank(Alt Alt Alt Alt Alt)
we got about 4 marks only in our 25man - disc priest helps alot It was really random, maybe a stealth buff, but it was still very very easy.
Looks like blizz has hot fixed it... http://blue.mmo-champion.com/12/2274...l--bugged.html