Quote Originally Posted by Kabooa View Post
You give it to the tanks. Giving DPS permanent vulnerabilities enforces more party compositions, where as giving it to tanks does not. It wouldn't even have to be different vulnerabilities among them, just each tank job is capable of applying a stack, at 3/6% increased damage taken. Let it go up to 9% if you want to triple tank something.
Give it to the tanks and you might as well remove it entirely as there will always be a tank in party content. Split magic and physical resistance between the 4 melee, and you get a situation where one slot needs to be one of two melee and the other needs to be one of the other two. This would then work closer to the idea that groups might have for the other two DPS one BRD/MCH and one BLM/RDM/SMN and you'll have a melee DPS in charge of buffing the damage of each.

NIN I would think would be on the magic end only because it also does magic damage with its ninjutsu, the other three can sort as needed from there, though might be smarter, in retrospect, to make DRG the other magic DPS if only to shake up the current existing meta and force SAM/MNK into the physical slots.