Boros standard for gameday, theoretical finish potential at turn 4-5.

Some Explanation:

Wojek: They are a 3/2 for 2, pretty potent the only other option in my opinion would be precinct captain. Ash Zealot doesn't do it for me, I am not a fan of her more-restrictive mana cost.

Aurelia's Fury: Fantastic Utility turn 4, this is where you have enough open mana to play a one drop (legion loyalist or Boros Elite) and still have enough to fury them for 1, if successful, assuring your victory.

Boros Elite: Forget champion, why? Turn one champion is probably going to do better than Elite. But, a few turns in you can throw an elite out with a hellraiser in play and any other creature and instantly swing for three from one mana. Champion is more of a slow build into a big swing, not fast and dirty enough.

Spark Trooper: Draining 6 isn't something to laugh about, bring it out one turn after you drop a silverblade un-bounded. Suddenly you swing for twelve lifelinked, let the scooping commence!

Sideboard:Assemble the Legion: Field wipes makes a good day a steaming pile of doo-doo. Assemble says "Go ahead, field wipe me, I'll have that plus more back next turn" I would side this in against heavy field clear.

Erase: Enchantments suck, that's about it. I would be open for alternatives for this slot!

Shattering Blow: Artifacts also suck, exiling is also awesome. I would be open for suggestions for an alternative for this one as well!

Slayer's Stronghold: Another anti control card. Gives you a good element of surprise and longevity against control decks that drag the game out. Even if you only have a few creatures it is nice to let them swing right away, hard and keep them ready to block.