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

Cost: 25 Arcane Power

Discharge a wave of pure energy that deals 390% weapon damage as Arcane to nearby enemies.

Force

Unlocked at level 9