These are the Perks that unlock as you level the Alteration skill. The Alteration skill is a part of The Mage style. Novice Alteration =============== REQ - None DETAILS - You can cast the novice level of Alteration spells for half Magicka Alteration Dual Casting ==================== REQ - Alteration level 20, Novice Alteration DETAILS - Dual casting an Alteration spell creates a more powerful version Apprentice Alteration ================== REQ - Alteration level 25, Novice Alteration DETAILS - You can cast the apprentice level of Alteration spells for half Magicka Mage Armor (1) ============= REQ - Alteration level 30, Apprentice Alteration DETAILS - Protection spells are twice as strong if not wearing armor Magic Resistance (1) ================== REQ - Alteration level 30, Apprentice Alteration DETAILS - Blocks 10% of a spell's effects Adept Alteration ============== REQ - Alteration level 50, Apprentice Alteration DETAILS - You can cast the adept level of Alteration spells for half Magicka Mage Armor (2) ============= REQ - Alteration level 50, Apprentice Alteration DETAILS - Protection spells are 2.5 times as strong if not wearing armor Magic Resistance (2) ================== REQ - Alteration level 50, Apprentice Alteration DETAILS - Blocks 20% of a spell's effects Stability ======= REQ - Alteration level 70, Adept Alteration DETAILS - Alteration spells last longer Mage Armor (3) ============= REQ - Alteration level 70, Apprentice Alteration DETAILS - Protections spells are 3 times as strong if not wearing armor Magic Resistance (3) ================= REQ - Alteration level 70, Apprentice Alteration DETAILS - Blocks 30% of a spell's effects Expert Alteration =============== REQ - Alteration level 75, Adept Alteration DETAILS - You can cast the adept level of Alteration spells for half Magicka Atronach ======== REQ - Alteration level 100, Expert Alteration DETAILS - Absorb 30% of the Magicka of any spells that hit you Master Alteration =============== REQ - Alteration level 100, Expert Alteration DETAILS - You can cast the master level of Alteration spells for half Magicka