Passive: Increases damage and healing done by magical spells and effects by up to 27.
Set (3 Pieces): Reduces the threat generated by your Scorch, Arcane Missiles, Fireball, and Frostbolt spells.
Set (5 Pieces): Increases the radius of Arcane Explosion, Flamestrike, and Blizzard by 25%.
Set (8 Pieces): 10% chance after casting Arcane Missiles, Fireball, or Frostbolt that your next spell with a casting time under 10 seconds cast instantly.