Glacial Spike

Cast out a shard of ice that explodes on impact, causing enemies within 4.5 yards to take 175% weapon damage as Cold and be Frozen for 1 second.

Enemies cannot be Frozen by Glacial Spike more than once every 5 seconds.

Unlocked at level 13

Mammoth Hydra

Summon a Mammoth Hydra that breathes a river of flame at nearby enemies, dealing 330% weapon damage per second as Fire to enemies caught on the burning ground.

Unlocked at level 56

Calamity

Cast a short range Wave of Force upon arrival, dealing 175% weapon damage as Arcane to all nearby enemies and stunning them for 1 second.

Unlocked at level 59

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

Prismatic Armor

Energy Armor also increases your resistance to all damage types 25%.

Unlocked at level 60

Time Warp

Enemies caught in the bubble of warped time take 15% more damage.

Unlocked at level 39