I really HATE the , increase x class damage / healing by x% , mod effect spell etc. it is so confusing that ability x does 100% attack power / spell power damage or healing but when you change spec / class is completely different. Why can't blizzard just make each ability different coefficient by itself so we understand clearly how much damage / healing that means? So 100% weapon damage from any class 1h or 2h swing to be the same, or 100% spell power bolt means same damage on any caster.