I didn't like my deck much, it was 4 colors with no green! But i stuck to two main colors with a couple cards in u/w splash. I had a deck full of broken rares, nobody said to go that way, I did it anyway, concerned about having fun because I didn't think about doing that well and I figured I'd drop to do a booster draft after round 4 or 5.
Here's something like my deck:
March of Souls
Ertai, the Corrupted
probably some more random creatures
Dromars lair (u/w/b)
I'm not comfortable with 4 colors, but I sit down anyway.
Round 1: some rookie
G1: This guy makes all the wrong plays, I just get out a Maniacle raged creature and exchange blows, then kill some creatures.
G2: Same thing.
Matches 1-0, Games 2-0
Round 2: Some weird looking guy, good though
G1: This guy is playing some u/w control thing and i just overwhelm him.
G2: 2nd turn shivan zombie, 3rd turn sinister strength on it. All he has is benalish trapper. I beat him to 5 and he casts sisay's ingenuity to make his guy black to get rid of mine. I get out a sideboarded in Red planeswalkers enchantment and reveal confound, he goes to 3. He casts thornscape apprentice and excludes it. I activate it and get a land, but eventually it wins it for me.
M: 2-0 G: 4-0
Round 3, Some guy I see at all big tourney's, i'm worried.
G1: I get some stuff out and beat him down early, he has a bad draw. I march of souls while he's at 6. he pops out pyre zombie, i cast crypt angel. I attack with it and flame him while i'm at 5. Phew.
I side in Urborg Shambler :)
G2: I get out Urborg Shambler w/sinister strength and beat him with it. He casts Scuta, I attack, no block. He attack, terminate. He tries to Magma Burst with Kicker, targeting Shambler twice, I tell him he can't and he can askt he judge. He slams his cards down and I beat him. WOW!!! I beat one of the best guys there 2-0, maybe my deck is good.
Round 4: this guy sat next to me when we did our decks, i helped him out, he was a rookie, but his deck was great.
G1: He overwhelms me with creatures. I kill shivan wurm though.
G2: Same, his whole deck is black! :(
This is some guy in a really good mood talking about how he's playing down.
G1: This guy had a decent deck, but no real bombs and my cards just wrecked him.
G2: Get ahead of him in creatures then cast Ertai. Ertai counters everything and I beat him down.
G1: He overwhelms me with creatures.
G2: I eliminate his nonblack creatures and beat him to death.
G3: Same thing, Reya wins this game.
Round 7: another good looking guy
G1: I get horrible draw (even after mulligan) don't draw black mana, and when i stabilize he routs and eot and recovers a lot faster.
G2: Don't draw Red, He kills me.
So I came in 15th and won a half box. Every time I lost was from drawing no B/R, not blue or white.