Obliterate uses 1x Unholy and 1x Frost runes, per use.
Two hits of Obliterate has used 4 of our 6 runes in the first 2 seconds.
Which leaves us two blood runes, and three seconds before we get runes back.

In the first case (Obliterate), we have (in a 5 second window):
- 2x Obliterate
- 2x Blood Strike
- 1 second of damage without runes.



Howling Blast and Necrotic Strike each use one rune, 1x Unholy and 1x Frost respectively.
The two blood abilities will also use two blood runes, so whatever we pick for the first (Blood Tap & Blood Strike or 2x Blood Strike), that will likely be consistent.

In the second case (Howling Blast + Necrotic Strike) we have (in a 5 second window):
- 2x Howling Blast
- 2x Necrotic Strike
- 1x Blood Strike.



Which will be higher damage, to a single target?
Even if Obliterate is higher damage, would we want:
- a single target DPS move; and
- a multi-target and/or healer resistant move
Or to just go with one move over the other?