Glyph of Disease

This is the subject of today's post. Out of all the new things being added in 3.1 for Death Knights, I believe that this one glyph will have the greatest effect on our play style. I'm going to go down the list of specs that could use this, and debate whether its worth it or not for that spec.

The main question to remember in the specs is: will a blood rune pull less damage then a Frost + Unholy rune, beacuse you are using Pestilence (blood) to save on Icy Touch (frost) and Plague Strike (unholy). Frost will not be mentioned here, as it cannot access Epidemic without throwing away 5 talent points that would be better spend in blood (NOTE: that refers to 2h frost. DW is still undergoing testing, and will remain to be seen if a DW build can work)

Blood spec

My initial reaction is that this glyph is very good for a blood spec, as you can go something like this:
IT -> PS -> HSx2 -> DS -> RPD to
HSx4 -> DS -> RPD
Pst -> HSx5 -> RPD
HSx2 -> DSx2 -> RPD
Pst -> HSx5 -> RPD

Repeating the last two forever.

FF and BP should not fall off at all, because they both last 21 seconds. This spec could work, because, simply put, DS > HS, in terms of sheer damage (HS > DS in terms of damage-per-rune). And then since using Death Strike will convert the F U runes into 2 B runes, theres another bonus.

Unholy spec

(note: in 3.1 Reaping will affect Blood Strike and Pestilance)

I think that this spec would benefit from the glyph even more then the blood spec would, as Blood runes are supplemental runes for unholy (and frost), used to create Death Runes. The rotation should look like:

PS -> IT -> BSx2 -> SS -> RPD to
SS x 3 -> RPD
Pst -> BS -> SSx2 -> RPD

Repeating the last two forever.

FF, EbP and BP should not fall off at all, because they both last 21 seconds. I think that this spec would do even better, beacuse, like I said, blood runes in this spec are supposed to become death runes, instead of being the primary damage rune. So using an ability that costs 1B wouldent be such a pain.

Time will tell.