(2 items) Adds 1487 Armor
(3 items) Adds 1096 Maximum Magicka
(4 items) Adds 129 Spell Damage
(5 items) When you take damage while you are under 50% Magicka, you restore 7590 Magicka. This effect can occur once every 30 seconds.
The Magicka Furnace set is part of the base game. It drops in Direfrost Keep in Eastmarch. Each set item is bound on pickup. You can acquire light armor, weapons and jewelry of this set in the Wood Elf motif style.