You feel naked without your armor and cannot understand why others would complain when wearing it.
Prerequisites: Arcane Armor Training, 7th level caster
Benefit: If your class ability does not nullify the arcane spell failure for armor you are wearing, the chance is reduced by 20% (min 0). If you may cast spells without suffering arcane spell failure for the armor worn, your armor check penalty is decreased by two (min 0) and your maximum Dexterity bonus is increased by two.
Reworked from Arcane Armor Mastery.