Any Planeswalkers you considered running?

badgurfield I guess really the only two I would run are Ral Zarek and Chandra, the Firebrand. Ral has the coin flip and bolt, and Chandra has the duplicate effect. Not sure what I would take out for them but I might put them in if I owned them in the first place.

Jace Beleren is a great staple for card draw, even if you're using his +1. I would recommend Dack Fayden honestly. He is the Izzet go-to Planeswalkers. Although he's stupidly expensive at the moment.

Not enough blue.

Since this is a pseudo group hug deck, I would suggest:

Arcane Melee

Tempt with Reflections

Clone Legion

Conjured Currency

Perplexing Chimera

Redirect or Swerve

Nin, the Pain Artist instead of Niv-Mizzet, the Firemind

How about Arcane Denial over Double Negative

Braids, Conjurer Adept

For red...

Death by Dragons

Why is warp world in here? You have 29 instant and sorceries, that seems like your'e hitting the "I lose" button. Chaos decks are fun don't get me wrong but that one stood out to me

I like it, but go ahead and use mine for references, you may find some cards that you hadn't thought of http://tappedout.net/mtg-decks/arjun-the-chaotic-flame/