Build:Artillery Sigil

Full Build Details
When one spell just isn't enough... stack all the circles and watch the fireworks. Specializing in absolute elemental coverage an support, you'll be sitting high and mighty behind your meat shie-friends or summoned minions and raining down fury.

Spark = Fire + Wind - Ranged Fireball + close range lightning blast. 5s CD

Mana Push = Ice + Wind + Ice - A trio of ranged elemental blasts dealing 50phys, 50 decay, 25ethereal, 85ice (210) and a staggering 285 impact + Slow Down. 15s CD

Conjure = Wind + Decay - An intense local lightning strike (165lightning and 200impact), as well as summoning your Decay turret for 15decay/second. 8s CD

Mana Ward = Ice + Fire + Decay - This one is iffy, but brings your dps to absurd levels while suffering -1.5hp/s. +15% Ice/Phys/Decay and +30% Fire damage, along with 4s of invulnerability, healing your summons/allies and a strong local ice explosion that slows enemies. 20s CD

You should get where this is going - consumable heavy, but phenomenal stacked elemental damage and no concerns about MP, allowing your mage to take and easy 3 points at the Leyline.

With boons and buffs, +95% Fire, +70% Ice, +50% Lightning and +70% Decay damage, and you can easily add another +20% to the element of your choice when you pick your staff.

The cavalry waits for YOU.