My take on a R/B/W Orzhov Rakdos Aggro Deck. The win condition is
Immortal Servitude
bringing a Godless Army of Unleashed CMC 2 creatures with Haste to bear for a single massive blow, ideally after a few turns of whittling your opponent down through the one-two punch of Orzhov Extortion and Rakdos' suicidal Brutality. Gotta fill the Graveyard, after all.
CMC 2 Creatures:
Basilica Screecher
: Serving double duty as a Flyer & an Extortionist. Requires binding to Lightning Mauler to attack immediately following Immortal Servitude. Note: Moved to Sideboard while experimenting with Thrull Parasite.
Grim Roustabout
: Handy early on as a Regenerate-blocker (until you WANT him to die). Requires binding to Lightning Mauler to attack immediately following Immortal Servitude.
Lightning Mauler: A critical card as it can haste any other creature and itself played either from the hand or fresh from the tomb. A full playset means that an ideal
Immortal Servitude
will resolve with eight Hasted creatures attacking in a single turn, not including creatures that have already possess Haste, naturally.
Thrill-Kill Assassin: More I.S. Fodder. Alternatively, becomes enemy creature removal when paired with Marked for Death, killing a blocker of your choice and (probably) sending Thrill Kill to his death. If only he were Immortal; Oh, wait. Requires binding to Lightning Mauler to attack immediately following Immortal Servitude.
Rakdos Shred-Freak is notable for NOT needing Lightning Maulers helping hand to make the best of I.S. thanks to Haste. Against slower decks he's free damage on turn two.
Other creatures:
Knight of Obligation
: In addition to more Extortion, his value as a Vigilant blocker in a deck running Unleashed creatures can't be disputed.
Other cards of note:
Mark for Death
: Mark a major blocker and send in Thrill-Kill Assassin or mark a Weenie and send in EVERYONE ELSE
Blind Obedience: Extortion and Synergy with Haste against chump blockers and creature reliant decks.
Swift Justice
: A cheap reliable combat trick for attacking or blocking with creatures slightly weaker than your opponents.
Madcap Skills: Makes the chosen Unleashed that much harder and more painful to Block.