Or, I could take 5 perks in Alteration to get 30% spell absorption and take the Atronach stone for an additional 50%, bringing the total absorption chance to 80%, and I could still get the passive 15% magic resistance buff. This would also open up an enchant slot on a ring. I'm a 2H Heavy Armor warrior, so the reduced magic regen and chance of absorbing my own summons doesn't bother me. I know it seems pretty heavily tipped in favor of spell absorption, but what do you think?