I find the above statement surprising. I've tanked both as blood and unholy. I am currently tanking as blood for max single target threat. I find Death Runes incredible useful for blood; slightly less useful for unholy but still worth getting.
Originally Posted by Archangel37
Sometimes someone pull a pat and you need to put down DnD but your your runes and ERW are on CD. Sometime i just use it to refresh a disease without breaking my rotation but I assume with the Glyph of Disease now working this is less of an issue.
I'm the guy that does his job. You must be the other guy.