Mage with Armor deBuff Ability

[devilMors]

no one uses this skill because the damage return is really bad and glowstiks completely removes it.
many of mages skills are rekt by pets.and some are even used instead of mages so more rogues can be stacked.
nekro removes freezes and burn dots.
glowstik/misty removes curse completly
mishi is used alot in-place of mages due to mana regeneration passive.

While the distinctive characteristic features of mage has been just been diminished just like you have mentioned for instance no use of curse; no use of stun by fireball; no use of alternative skills just stick to gale, the other classes have just received much more advantage in contrast to mage for instance stun immunity granted by razor. So, ensuring armor debuff ability would at least grant blue lives a new role that is being able to deal damage in pvp.