BW "Enter the Battlefield" deck. Not the usual Life/Death build but a build focusing on B/W creatures that have a cantrip effect when they enter play, and a bunch of ways to flash them into play repeatedly. Apologies if this has already been posted, the build is rather obvious and I didn't have time to read the entire thread.
NOTE: Deck was slightly modified after some feedback below
EtB Creatures
3
Lone Missionary (probably the weakest card here, replace with
Gravedigger maybe?)
4
Liliana's Specter4
Phyrexian Rager3
Wall of Omens3
Banisher Priest2
Agent of the Fates2
Rune-scarred Demon1
Shadowborn Demon22
Spells that "flash" our creatures to save them, boost them, and repeat their EtB effect
4
Cloudshift4
Undying Evil3
Rescue from the Underworld (will flash 2 creatures, so pretty good)
11
Too good not to run (but expendable if you dislike them)
2
Indulgent Tormentor1
Baneslayer Angel3
4
Orzhov Guildgate11 Swamp
9 Plains
24
Mana Curve:
1cc: 8
2cc: 6
3cc: 13
4cc: 0 (NOTE: 0 cards at 4cc is actually a strength, as a powerful play is often to drop a 3cc creature with Cloudshift or Undying Evil in reserve)
5cc: 7
6+cc: 2
Note: I am aware that flashing Banisher Priest as he enters play (and while his ability is on the stack) does not deliver a double-whammy removal the way
Fiend Hunter would, but he is still a great flash target. He's typically a high value target for the opponent to remove, and when you flash him you can sometimes nail a better target anyway. At the very least you mitigate the biggest drawback this card has: that the opponent can 2-for-1 you with a
Shock as a combat trick when you're attacking.
TRICKS and COMBOS: sneaky things about the deck that might not be immediately obvious
1) Basic flash: Rather obviously, the deck's simplest trick is "flashing" one of the EtB creatures. All 11 of the flash cards are instant, so ideally you do this to save you creature from dying (e.g. block a big attacker with your Rager then cast Cloudshift on it, or cast Undying Evil on your Rager in response to an enemy Shock), but obviously you can do it any time if you are desperate. The flashed creature's "Enter the Battle" effect will go off a second time.
2) Moving on from the above, Rescue from the Underworld will "flash" TWO creatures: the one you sac and the one you rez. Remember they don't come back until your next upkeep, so you want to do this in your opponent's turn. Like the Spanish Inquisition, no one expects this. And since there is a high chance your rez target will be juicy (such as your Shadowborn Demon which you sacced to itself earlier), this play is extremely powerful.
3) Cast Cloudshift or Undying Evil on Agent of the Fates to make the opponent sac a creature at instant speed. Cloudshift on a tapped Agent when the opponent is making what he thinks is a safe attack will take out two enemy creatures.
4) Cast Undying Evil on the Shadowborn Demon at the start of your upkeep while his sacrifice effect is on the stack, then sac him to himself to kill 2 enemy creatures in total and keep your 5/6 flier in play an additional turn.
5) Shadowborn in play and Rune-scarred in the graveyard (or vice versa) is a surprisingly common situation for this deck. From here, casting Rescue from the Underworld on the Rune-scarred and saccing the Shadowborn will bring both back into play on your next upkeep, and you will not need to sac anything to the Shadowborn since the window for his sac trigger has passed by this time - and you will kill an additional enemy creature! The tutor effect from the Rune-scarred can then be used to fetch another Rescue. This means on your next upkeep you can sac whichever demon you like and repeat the process till you run out of Rescues.
6) Play Banisher Priests earlier than you might normally. If a better target to exile appears later in the game, or a creature gets a powerful enchantment put on it or whatever, you can simply flash the Banisher and exile the better target.