Softcore triple elemental build

Here's my build

http://www.pathofexile.com/passive-skill-tree/AAAAAgMBAP0EBwdjDH0OSBB_EVARlhHbFVAXUBdUHNwdFB3ZHwIigSepLL8tHzLRM3Y2xTbYO-FBlkLDQ1RDY0VHRtdHBkwtTLNPv1crWPVdxl3yXypfamBtZp5tGXFNc1N0VXYReLp8zn4zfll-r3_GghCCHoXFh2WIQo0ZjjyPRo_6kjiTJ5itms-boZwtnWOdgJ3EnqGfe6IupJGnCKcrrD-vm7UEtoa3MbiTu9bAVMHFwfPDbcae0NDYJNrd2-fdjN3z34TfsOAS4vfljuZ85oHpc-vk7BjsVfFs8h33wfrS

I'm level 47 for now and it's going pretty well, I think this character is going to be super strong once everything is finalized. Here's my skills and strategy that fits with this.

Skills (in order of priority)

Aura's:
1. Clarity
2. Discipline
3. Purity
(Probably more in near future TBD)

Spells:
1. Freezing pulse combined with faster casting, added cold damage, life leech
2. Firestorm combined with increased duration, life leech, added fire dommage
3. Spark combined with spell totem, faster casting, greater multiple projectile, added lightning damage.

Curse: (Need item to apply 2 curse)
1. Elemental weakness
2. Frostbite

Strategy:
Basically where I'm going with this build here is to proc elemental equilibrium effect as often as possible. So you start off with the totem to aggro mobs, once their around the totem cast both curse then firestorm and finish off with freezing pulse.

What you think?