Some cards you may want to look into would be Malfegor which I personally like more than Avatar of Slaughter but I understand your theme. Cabal Coffers is a good land to have for this deck if you want to include Urborg, Tomb of Yawgmoth. Also Blood Moon and Spawn of Thraxes is a great combination especially for the way you have your deck set up. Anthem of Rakdos seems like it would fit in rather well here as well. Also any particular reason Rakdos, Lord of Riots isn't included? It would seem his ability to lower creatures CMCs would be beneficial and the flavor of both Rakdos' in your deck is just amazing. Reverberate is another decent card to help with pesky control players. Moonveil Dragon, Moltensteel Dragon, and Skithiryx, the Blight Dragon also seem good but I'm not sure what to take out. I know a lot of my suggestions where dragons but they seem to fit with what you're trying to do with the deck.

Pheardemons

Malfegor Is a good idea, the only problem is nobody in my meta has any b/r stuff, so I would have a bit of an issue getting a hold of him

Cabal Coffers,Urborg, Tomb of Yawgmoth I will definetly add these, my manabase isn't very developed as you can see XD

Blood Moon my $$ limit per card is 20.00, but it's a good idea

Anthem of Rakdos is in my paper version, I'll update the decklist

Rakdos, Lord of Riots was the original commander of this deck, and I forgot to change it to the mainboard when I switched (that's why Rakdos the Defiler is still on the mainboard) thanks for the heads up!

I never thought of Reverberate and I've got one, so I'll find something to take out to put it in, Thanks!

I don't think Moonveil Dragon has quite the flavor I'm looking for

Moltensteel Dragon and Skithiryx, the Blight Dragon have good flavor (I look at names and card art to decide this), but I'm not sure what they'd add to the deck

Moltensteel Dragon is an alternate win condition being that you'r making everyone sacrifice permanents, and they're losing a lot of life with the cards you have. Skithiryx, the Blight Dragon is another alternate win condition with the infect as well as being able to regenerate him. Those were my thoughts on those. Have you also looked into In Garruk's Wake, Infernal Tutor, Demonic Tutor, Grave Pact? I noticed you didn't have any tutors in your deck and very little draw power. Does that affect your deck and how it is played?

Also I wanted to ask how does the deck play in your group? Rakdos makes you sacrifice your permanents no matter what but does it always get the combat damage to make your opponent sacrifice as well? Does the sacrificing permanents hurt you more in the long run?

Hey, i really like the list but u could get some early removal like ultimate price, doom blade, maybe radiant flames etc... :D

Pheardemons

Rakdos hardly ever ends up attacking, because his presence on the battlefield is enough for everyone to keep their answers to attacks in their hand, so if I attacked with my Reaper from the Abyss, they are less likely to answer it because they want to save their answers for when Rakdos goes after them. The only situation where Rakdos will actually go for someone is if the way has been cleared via Wake of Destruction or Descent into Madness so they are unable to answer, or if they are completely tapped out.

In Garruk's Wake is like another Plague Wind, I'll definetly look for one :)

Grave Pact and stuff like Dictate of Erebos I think would be fun

I don't tutor because I haven't had enough experiences where I needed a particular card to get where I want to.

About the sacrificed permanents: My attacks with rakdos are a final beatdown, so the sacrificed permanents only make a difference if I somehow get stopped at a point where someone else can recover before me.

markooosrbija (nice name, BTW)

My lack of early removal is simply because by the time someone has something that can make me worried about my life total, I can use a Plague Wind or Din of the Fireherd and MAKE THEM GET DEAD :D

Thanks for the comments :)

What do you think about Conspiracy? It would be cool to not have to sac your other creatures because they are not demons but I do understand that it could be a dead card at times. Good build! +1

rynonator Thanks for the feedback! I think Conspiracy is a little situational, and since I don't run many tutors it won't be accessible in the situations that id need it in.

I would personally play grave pact and dictate of erebos to punish your opponents from trying to fight back against you

Also a land that would be hilarious in this is Rogue's Passage making a creature such as Master of Cruelties or Rakdos the Defiler unblockable.

grasshopper021 Dictate of Erebos and Grave Pact are indeed some of the best cards with Rakdos the Defiler because they can guarantee return when i sac stuff for Rakdos to attack, the reason they are on my maybe board is because I don't have them quite yet

I've got a Rogue's Passage that I can throw in though, thanks!

Olivia needs to be in this deck. It is so nice seeing Havoc Festival in a commander deck! Makes them more enjoyable and quick. Good deck, I may copy it to an extent. Thanks for the inspiration!

Marvel_Dracula Yep! There's nothing better than taking a long game that is riddled with boring politics and saying HEY GUYS BTW WE ALL HAVE 4 TURNS TO LIVE

Speaking of politics, once I get the ball rolling i have to end the game pretty quick or else everybody kills me so I wouldn't be able to capitalize on Olivia Voldarens abilities

That is true, Olivia is a longer term game win. Also Braid of Fire could be good in this deck, its good ramp and you don't have to do anything but add mana to your mana pool. Really no downside.

Marvel_Dracula: Braid of Fire seems like a good addition to this deck, I'll make sure to look for one, Thanks!

OrangebanannaX Rakdos, Lord of Riots was the original commander of this deck, but I switched because the amount of uncertainty that Rakdos the Defiler brings to the table with him is priceless.

I like this idea alot but i feel like something is missing something like Kaalia of the Vast

Maggi If I had the cash for a Kaalia, I would be all over doing a full on Kaalia EDH with all the bells and whistles.

stares off into the distance with dreamy look on face

proceeds to cry in a manly way