Forgive me I'm new to DK frost( Well DK in genereal) and every guide I find about Frost DKs rotation states I only apply diseases with Howling blast and plague strike. I understand that for Single target, but what about AOE? Do I not worry about spreading my blood disease to multiple targets and just keep frost up on all targets? Or do I start with howling blast PS then BB to spread it? Any help would be awesome, thanks guys