GROTHDAAR:
(1 item) Adds 1096 Maximum Magicka
(2 items) When you deal damage to an enemy within 8 meters, you have a 10% chance to create lava pools that swirl around you, dealing 1800 Flame Damage to all enemies within 8 meters of you every 1 second for 5 seconds. This effect can occur once every 10 seconds.

BURNING SPELLWEAVE:
(2 items) Adds 1096 Maximum Magicka
(3 items) Adds 129 Spell Damage
(4 items) Adds 833 Spell Critical
(5 items) When you deal damage with a Flame Damage ability, you apply the Burning status effect to the enemy and increase your Spell Damage by 490 for 8 seconds. These effects can occur once every 12 seconds.

SILKS OF THE SUN:
(2 items) Adds 833 Spell Critical
(3 items) Adds 1096 Maximum Magicka
(4 items) Adds 129 Spell Damage
(5 items) Adds 400 Spell Damage to your Flame Damage abilities.