This is a Signature spell. Signature spells are free to cast.

Summon a spectral blade that strikes all enemies up to 15 yards in front of you for 168% weapon damage as Arcane.

Primary

Unlocked at level 11

Cost: 30 Arcane Power

Hurl an orb of pure energy that explodes on contact, dealing 435% weapon damage as Arcane to all enemies within 15 yards.

Secondary

Unlocked at level 5

Cooldown: 15 seconds

Transform your skin to diamond for 3 seconds, absorbing up to 40% of your Life in damage from incoming attacks.

Defensive

Unlocked at level 8

Cooldown: 11 seconds

Blast nearby enemies with an explosion of ice and freeze them for 2 seconds.

Defensive

Unlocked at level 4

Cost: 25 Arcane Power

Surround yourself in a barrier of ice that reduces damage from melee attacks by 12%. Melee attackers are either Chilled or Frozen for 3 seconds. Lasts 10 minutes.

Only one Armor may be active at a time.

Conjuration

Unlocked at level 14

Cost: 20 Arcane Power

Cooldown: 6 seconds

Gather an infusion of energy around you that explodes after 1.5 seconds for 945% weapon damage as Arcane to all enemies within 12 yards.

Mastery

Unlocked at level 19