Warrior and Dark Knight's Predicament

[Shurrikhan]

GNB has aurora, heart of stone and heart of light, while DRK only has The Blackest Night(3k MP) and Dark Missionary. It's three to two, and TBN costs resources.

I give you GNB cards. I give DRK two. One card given to each of us is exactly the same. (HoL and DM are identical save in icon, name, and animation, just as Rampart and Shadowskin were before. Curious, that.)

GNB gets a 2, a 3, and a 4. DRK get a 9 and that 4.

Which of them has the "bigger" hand?

And, no, TBN does not cost resources unless used at entirely the wrong time. If it provides its full value, it refunds its cost.

For HoS, a 25-second cooldown, to absorb as much as TBN, a 15-second cooldown, the HoS target must take damage that would be equal to 167% of their HP. In other words, they must die.

If the tankbuster and following auto-attack would have dealt 25% of the co-tanks HP, HoS saves the co-tank 3.75% HP, less than the standard deviation of damage. In short, it would be impossible for even a parser to notice unless tracking buffs present at the time of the hit. A TBN will instead save the co-tank 25% HP.

If 50%, the HoS will finally save the co-tank 7.5% HP. TBN will again save 25%. If the tank otherwise would have died (100% HP of damage) over the duration, the HoS will finally save 15%. TBN will still save more at 25%. Only at the tank having been overkilled by two-thirds of its HP can a HoS match a TBN.

Aurora's 1200 potency of healing amounts to, what, at most 15% of a tank's HP? A DRK would do that, on average, every 9 seconds.

Still think GNB's hand (Aurora and HoS) is better than DRK's (TBN)?