Conflagrate

The missile pierces through enemies and causes them to burn for 130% weapon damage as Fire over 3 seconds.

Burn damage stacks up to 3 times and any Fire damage taken from your other spells refresh all stacks to their maximum duration.

Unlocked at level 52

Volatility

Enemies killed by the beam have a 35% chance to explode causing 750% weapon damage as Arcane to all enemies within 8 yards.

Unlocked at level 30

Frozen Orb

Create an orb of frozen death that shreds an area with ice bolts, dealing 950% weapon damage as Cold.

Unlocked at level 55

Lightning Storm

Enemies affected by Blizzard take 15% increased damage from Lightning.

Unlocked at level 35

Crystallize

When you are struck by a melee attack, your Armor is increased by 20% for 30 seconds. This effect stacks up to 3 times.

Unlocked at level 31

Storm Chaser

Each cast of Energy Twister grants you a Lightning Charge. You can store up to 3 Lightning Charges at a time. Casting a Signature spell releases all Lightning Charges as a bolt of Lightning that deals 196% weapon damage as Lightning per Lightning Charge.

Energy Twister's damage turns into Lightning.

The following skills are Signature spells:

Magic Missile

Shock Pulse

Spectral Blade

Electrocute

Unlocked at level 52