Burnished Hart for the mana ramp, and Gilded Lotus .

Could put Mirari in to duplicate yor spells.

Could add Dictate of the Twin Gods to double your damage output.

Mirari is neat but slow. Dictate of the Twin Gods is bad for me because I have few blockers and it doubles the damage my opponents deal to me.

If you can keep it alive, Platinum Angel could be an asset.

Reliquary Tower

Adding in some cards that do constant damage could be excellent. Mogis, God of Slaughter, Sulfuric Vortex, Spellshock, and Ankh of Mishra can get in some early and repeatable damage.

You are also running very few creatures. Lethal Vapors might be a good way to slow down your opponents.

Instead of Dictate of the Twin Gods as was previously suggested, a similar alternative would be Gratuitous Violence since it doubles damage dealt by just your creatures.

Maybe a Vedalken Orrery? That way, if a player takes a large enough chunk of their health preparing to kill you, you can surprise them with a Final Punishment.

Anthem of Rakdos if you find that you are usually out of cards by the time you cast your commander then maybe this is one of the best ways to make his power truly overwhelming.

Gratuitous Violence is another card you should consider like Timelord-Planeswalker said.

Have you ever seen this land? Glacial Chasm It would protect you from your own slug effects like Manabarbs and Heartless Hidetsugu. Meaning for several turns you could sit in a safe little shell dealing out damage and taking very little in return. When you get tired of paying the upkeep just stop and it goes away.

Since you are able to get a lot of damage dealt, Rakdos, Lord of Riots might be a cool inclusion...

I'm contemplating removing Icy Manipulator and Royal Assassin, any suggestions?

Platinum Emperion makes you impervious to damage. Might prove handy with the cards that effect you, such as Havoc Festival, Wound Reflection, Heartless Hidetsugu and Burning Earth. You also have two Incendiary Commands.

Thanks, I'll test it out. And maybe there is a glitch or something but I only see one Incendiary Command?

Maybe he said you have two because it is in two categories at the same time...

True; it is a modal card so it can go into multiple categories.

Might I suggest Kazuul, Tyrant of the Cliffs. He provides excellent chump blockers should they try killing you through combat damage. Really only drawbacks would be if you have either Tainted AEther or Burning Sands out.

I want to say Lethal Vapors

If you're looking to speed up the deck, I would suggest Rakdos Signet. It's kinda meh, but it's cheap and accelerates mana easily.

That is true. I'll try testing it out and see how it works.

Talisman of Indulgence is a pretty decent mana rock. Smokestack is also a really good slug card.

Mogis, God of Slaughter for the PAIN!!! +1

You have incendiary Command in the deck twice. once under control and once under draw

@BossColten: Yeah, it does both, but there is only one copy of the card in the deck if you look under type.

Price of Glory would be good in here.

A good card-drawing one would be Seizan, Perverter of Truth.