When I am out of Stamina (usually just farming mats in wrothgar) I use this on my Vamp Stam DK as follows: Obsidian Shield, Rally, Equilibrium, Igneous Weaponsx5, Rally.
I've used it in Dungeons too as a survival method (vCOA) as follows: Rally, Flames of Oblivion, Equilibrium, Poison Mist. .......................................Rally!
So how do the HP cost and Magicka gain scale exactly? And also I'd heard it was getting updated for DB. Is this the case? If so, then how?