mogis' mayhem

My eyes must be off. I don't see a Rage Reflection or Exquisite Blood in this blood hungry deck of yours.

I like it a lot. Since your commander is Indestructible, have you considered adding Pariah's Shield? Great way to lock the game down, especially if you get Bedlam out so that creatures can't block. I personally would take out Door of Destinies (too slow), and put Pariah's Shield in. Similar casting cost, so it won't slow the deck down, it just adds an element of control, which is nice/rare for a Rakdos deck.

Also, instead of the "destroy target tapped creature" sorceries, why not a Royal Assassin? If he has haste (like he most likely will in this deck) he's as good as the sorcery "Assassinate". So why not make it a bit reoccurring? then take out one of your haste enchantments or equipments, and add Urabask the Unhidden. He makes your creatures haste, and opponents enter battlefield tapped!

Also, how many "your creatures have haste" spells do you need? If you already have one out, and then you draw another, you just wasted a draw. So instead, take out 2 haste enchantments, and put in two tutors (demonic tutor, diabolic tutor, etc) That way if you already have the haste enchantment out, you can tutor for something else. If you need the haste, tutor for a haste enchantment.

Also, in my opinion, if you want to add pressure/control, how about Pestilence and/or Pyrohemia? I'd take out two of your "destroy non-black creature" spells and add these two enchantments. Your commander is indestructible, so it wont hurt him, and it can lock down your opponent nicely...Oh crap! and if the Pariah's Shield is on Mogis!!!!!! I think i might have to make this deck!