Quote Originally Posted by TouchandFeel View Post
I do not think giving DRK a magic vulnerability debuff is a good idea.

If DRK is the only job that gets it, that is a huge raid dps boost which would make them potentially mandatory.
It's an effective 1% increase on Magic damage (10% at 11% uptime is 1.1%)
This would affect some damage of Dark Knights, some damage of Paladins, healers, and casters.

Also, Summoners bring a variant of this (Contagion from Ranged summons). No one considers them mandatory as it is.