Or more precisely, the Blood Mist morph, has become a popular build amongst people that wish to avoid combat. Although recovery is disabled while in this form, the caster can still restore resources via sets and skills. This effectively allows the player to remain in said form for unprecedented periods of time. Granted, this is a type of tank build, but there are a few disparities between a traditional Sword and Board tank build and infinite Mist Form. The main caviat with the latter is that it has only one vulnerability: negate. Healing is no problem while in this form, because the AoE heals the player. A traditional tank is prone to unblockable stuns, therefore that tank is forced to consider such threats, and properly build with that in mind. A Mist Form "tank" cannot be affected with suck stuns, leaving negate the only option available. Since unblockable stuns are much more accessible than a negate because only one class has it, it begins to become aparent that Mist Form "tanks" face very few threats. There have been many instances on EP Keeps on Xbox NA when we have AD or DC Mist Form "tanks" inside them for hours. A regular tank, while hard to kill (if the player is good), is not unkillable. The power to never run out of resources while taking almost zero damage is not an ability that anyone should have. There aren't always coordinated groups running around ready to drop a coordinated assault on Mist Form "tanks". When the Mist Form "tanks" were in our keeps, even after we killed one, the other simply had a resurrection ultimate ready for his dead comrade. It became a never-ending chase around the keep for longer than was necessary. Either disable any recovery and restoration during Mist Form, disable the healing of the AoE, or implement a ramping cost after 10 seconds. 10 seconds should be enough to get out of danger, allowing anyone to line-of-sight and heal. Anything more than that is unwarranted. It is effectively allowing players to disregard the mechanics of being in a combat scenario by giving them the benefit of completely disregarding resource management. This type of build gives players more survivability and mobility than an actual tank, all because of one skill.