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: 25 Arcane Power

Imbue your weapon with magical energy, granting it 10% increased damage. Lasts 10 minutes.

Requires Weapon

Conjuration

Unlocked at level 20

Cost: 18 Arcane Power

Channel a beam of pure energy, dealing 390% weapon damage as Arcane.

Disintegrate damage is increased by 250% weapon damage every second, up to a maximum total of 890% weapon damage as Arcane.

Secondary

Unlocked at level 21

Cooldown: 15 seconds

Summon 2 illusionary duplicates of yourself that taunt nearby enemies for 1 second, last for 7 seconds and have 50% of your Life.

Spells cast by your Mirror Images will deal 10% of the damage of your own spells.

Mastery

Unlocked at level 25

Cooldown: 11 seconds

Teleport through the ether to the selected location up to 50 yards away.

Defensive

Unlocked at level 22

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