I know this might be a really late response; but the alteration spells don't fail, they just don't benefit from the specific mage armor perk (i.e., no 2x/2.5x/3x protection). They still provide base protection of their respective spells.
I know this might be a really late response; but the alteration spells don't fail, they just don't benefit from the specific mage armor perk (i.e., no 2x/2.5x/3x protection). They still provide base protection of their respective spells.