Extreme Pillowfort
The strategy of this deck is to try and make yourself seem as harmless as possible. Cards like Soul Snare and Ghostly Prison deter enemies from you, and Boros Reckoner makes sure that you have a nice blocker on the battlefield. In case someone does attack you, and does somehow manage to get through the several layers of defence I have in the deck, you can always pull out a Deflecting Palm, or an Angel's Grace.
Win Conditions
This deck, obviously, is best played in a multiplayer game, preferrably 4-7 people. To knock out the first few players, you can use Master Warcraft, and redirect someone's attack to another person. When its just down to you and another player, you need to simply draw out the game until the opponent forfeights.
The Wall
This is your first layer of defence, the thing you use to convey a harmless message of "don't attack me".
Soul Snare-All around great defensive card for 1 mana, provides efficient early game defense.
Ghostly Prison-Taxes the hell out of most players when they attack
Sphere of Safety-Once you get alot of enchantments down this can be a pain
Story Circle-Had to add this one, it blocks but doesn't kill
Solitary Confinement-When you're desperate, play this :P
Emergency Cards
When someone swings at you and you can't block their attack, you can always pull these out:
Deflecting Palm-Best card for deflecting damage back at an opponent
Angel's Grace-The best "oh shit" card when it comes to magic
Master Warcraft-This isn't the best emergency card, but if you can't do anything else, use this to block the attack
Gideon of the Trials-His final 0 ability is amazing for this deck
Condemn-One mana removal that indestructible can't do shit about