This is my take on a standard Rakdos deck. It's designed to get as many cheap guys out and swing away as fast as possible. If my opponent plays creatures as fast as me, all I need to do is throw down a couple Mogis's Marauders out and give all my guys intimidate to get through and keep beating away if they don't play red or black.
If I can't get a marauder out, I have plenty of removal spells like Dreadbore, Magma Jet, etc.
Deck Breakdown
Mogis's Marauder- With this guy out, I can give my creatures haste and intimidate if my devotion to black is high enough. This way I can get more damage in even if my opponent has creatures on the field and as long as they are not black or red.
Desecration Demon- Once this big guy hits the field my opponent is on a time table for how long they have till it's all over. They can sacrifice one of their own, but that will give them one less blocker to defend them against an already powerful assault.
Rakdos Cackler- A one drop 1/1 that basically will come in as a 2/2 thanks to unleash. Gives me a 2/2 very early and to get the damage going faster.
Master of the Feast- A three drop 5/5 flying beat stick. My opponent being able to draw a card on each of my upkeeps won't be a problem when they will be dead not long after that.
Rakdos Shred-Freak- Two drop guy with haste. Gets damage going early once he hits.
Spike Jester- Same as the shred freak but instead of a 2/1 jester is a 3/1. Two drop 3/1 one with haste is always great in here.
Mogis, God of Slaughter- When it's my opponent's upkeep they have two choices. Take two damage to the face, or sacrifice one of their creature's. When he becomes a creature, he becomes a walking tank. Not bad for just four mana.
Rakdos, Lord of Riots- When this hits the field, it just takes a few swings to win the game. When he deals damage my creatures are cheaper to cast.
Dreadbore- Great removal spell that blows up creatures or plainswalkers.
Rakdos's Return- Great hand disruption against my opponent and causes them to loose life in the process.
Doom Blade- Two drop removal spell that blows up any non black creature my opponent has.
Magma Jet- Damage spell that hits my opponent or one of their creatures for two and allows me to scry.
Lightning Strike- Same a Magma Jet except it deals one more point of damage and I don't scry. Still a good little two drop.
Madcap Skills- Nice little enchantment that gives whatever it's attached to +3/+0 and forces my opponent to gain block him. Great way to get my other guys to get their attacks through and get the damage going.
Mizzium Mortar- Two drop removal spell. If I can overload it, it becomes a field sweep.
