Yeah I would expect something like this:
Originally Posted by Satorri
The Death Knight takes on the presence of Blood, increasing Stamina by 8%, armor contribution from cloth, leather, mail and plate items by 60%, reducing damage taken by 8% and healing the Death Knight by 4% of damage dealt. Only one Presence may be active at a time.
Strengthens the Death Knight with icy power, increasing all resistances by <level/2> and causing extra Frost damage equal to 12% of damage caused. Only one Presence may be active at a time.
Infuses the death knight with unholy fury, increasing attack speed by 15%, movement speed by 15% and reducing the global cooldown on all abilities by 0.5 sec. Only one Presence may be active at a time.
-- (The Death of Rats, Terry Pratchett, Soul Music)