I really can't think of a worse way to die. Attacked by a homicidal goat, wearing plate mail, suddenly accompanied by angels and demons. GG!!!
MAINBOARD
Trading Post: The centerpiece of the deck. Most of the cards here work quite well with it.
Bogbrew Witch and Friends: Better than you might expect (although still very janky). The weakest point, Bubbling Cauldron, has it's own, special use with the next card.
Angelic Accord: With Trading Post, turns any card into an Angel. With Bubbling Cauldron, turns any creature into an Angel. One of the primary win conditions.
Scroll of Avacyn: At worst, cantrip fuel for Trading Post. At best, 2-mana cantrip Angel. Good enough.
Homicidal Seclusion: Turns any single creature into a significant threat. Usually used to enable Angelic Accord.
Demonic Rising: A backup plan. Make a goat, make a demon, make another demon.
Haunted Plate Mail:A creature that is not always a creature, allowing us to make homicidal armor, or buff already homicidal angels or something like that.
Elixir of Immortality: Recycles graveyard for the Bogbrew package, gains life for Angels, and makes your opponent wonder "Why the hell is he playing this card?" Then again, that's what most of these cards do anyway.
Blood Baron of Vizkopa: Probably the only good card in here. A single swing is enough for an Angel, and has "Almost-Shroud."
Orzhov Keyrune: Needed ramp. Lets you use Trading Post immediately, drop Homicidal Seclusion or Blood Baron, and is another sometimes-maybe-creature.
Doom Blade, Victim of Night, Merciless Eviction: Removals. Yawn.
SIDEBOARD
Dead Weight: I don't like you either aggro. Removals.
Gift of Orzhova: Enables 8/7 flying goats of doom. OF DOOM!!!
Duress and Sin Collector: Control doesn't like these. I do.
Tribute to Hunger: Can occasionally make Angels.
Demonic Rising: For when one isn't enough.
MAYBEBOARD
More of other cards: Depends. I'm definitely not sure about the numbers.
Prophetic Prism: CA with Trading Post.Decent fixing.
Gideon, Champion of Justice: Could be good. But, he is Gideon.
Blue: Aetherling, Supreme Verdict, Dimir Keyrune, Detention Sphere, Nephalia Drownyard, other good cards. However, expensive(I don't even have the lands for this) and much less fun.
Let me know what you think!