Best Destruction Gear:
Master Destruction Robes/Daedric Armor Of Peereless Destruction.
Daedric/Ebony/Dragon capacete of Pereless Destruction.
Hands: Ebony/Daedric/Dragon Gauntlets Of Extra Magic +21.
Feet: Ebony/Daedric Boots Of Resist Frost.
Other: colar (-10 cost), Ring (-10 cost)
Standing Stones: Atronach Stone (+50 Magicka, absorb 50% spells, Magicka regens at -50%.)
Apprentice Stone: (Magicka regens 2x faster, but twice as vulnerable to spells.) *•But with armor that doesn't really matter!*•