Magical Resistance Rating

MRR and % reduction
This new attribute is the magical equivalent of Physical Resistance Rating. It can be increased by wearing armor, gearing up Sheltering effects, and through certain enhancements. This rating works on most magical effects, but will not reduce force, bane, and some other special effects. The formula for this rating is the same as PRR: 100/(100+Rating). For example, if a character with 20 MRR is hit by a spell that does 100 damage, they would actually sustain 83 damage (100/(100+20)=.83333).