Suggestions change DRK a bit

[MoarLegion]

I wouldn't mind seeing Blood Weapon gain an alternative function while using Grit. I don't like the idea of having dead skills on my bar (it works for WAR since its stances both come with analogous skills that can be easily macro'd to switch, but DRK just ends up with dead space), and I've no doubt that there's room to do something with it.

I think Blood Weapon should be our Bloodbath while in Grit. DRK could use a steroid buff in Tank Stance and I think Blood weapon having the haste and HP drain would fill that role, and make DRK more interesting to play in general.