So what's the point in having Darkside as a buff if it costs no mana? Why not just bake the extra damage into the class? I liked learning DRK because of learning how to maintain my MP, and it was really rewarding when id run through a dungeon never taking off Darkside. Obviously now there is no reason not to use darkside, so it seems trivial to me to even have it when they could just make it a part of the class without it being a buff.