Stoic Angel would be great here, or sublime archangel.  (are you still making this deck?)

Cathedral of War

Eldrazi Conscription (with Sovereigns of lost alara) for instant win lulz?

This looks pretty insane so far. A couple inclusions that caught my eye, though:

Master Biomancer and Prime Speaker Zegana seem either win-more or like they need more support. Prime Speaker is great because she draws you cards, but other than that doesn't do much. Restoration Angel also doesn't have a crazy number of targets, though she will do some small good in here. I would suggest a Birthing Pod- your creature curve is already really solid, and it will just help consistency as well as help you find Rafiq if he gets tucked. 

Green Sun hits less than half of your creatures. Unless you think you *really* need those 12, I'd cut this for something like Worldly Tutor or Pod. 

Skullclamp is an insane card, but it doesn't do too much in this deck- you don't make a whole lot of small tokens. Yes, it boosts attack and gives you a bonus if they die, but you've got better options for equipment to boost power. 

While the Swords are good, each Sword you've included shares a color with auras that you are probably going to want to stack. This is actually really devestating in a voltron deck like this, where you really just want to stack as many things on top of your commander as possible. 

I would also think about running Finest Hour and Whispersilk Cloak. 

Rogue's Passage could be a good addition.

Windswept Heath but no Flooded Strand love? Would this be a deck that runs duals as well?