Red Modern Haste

A R/W deck which relies on burn and haste creatures to put massive amounts of pressure on one's opponent. Each card is aggressive and intended to deal damage as quickly as possible, to force one's foe to take a defense stance, or die quickly.

The Swiftspear and Guide both deal damage immediately, with the first being better once burn starts getting stacked, and the second being superior when one's hand is empty.

The Vexing Devil is an excellent card for this deck. Ideally we'll either drop a pair of Goblins or Spears, or an Ash Zealot on turn 2, meaning as much as 4 damage and as little as 2. The devil will either swing for 4, or deal 4 to their dome. Either way, it will have put out some healthy damage before turn 2 resolves, or at least made your foe waste a Path to Exile. Both options are typically great for the early game, though it's less good later. If your foe stabilizes, they'll either take 4 to the dome, and survive just fine, or they'll let you play a dude and kill it. The only circumstance in which it will actually survive an untap phase is when you were winning anyways. As said, great on turn one, not so good later.

Ash Zealot is a hate bear attached to haste and first strike. There are few cards capable of blocking her profitably on turn 2. The gravy is the Graveyard hate which is sometimes sufficient to force your foe to scoop immediately, depending on the deck. Mostly its a 2/2 with haste.

Scab-Clan Berserker is a 2/2 with haste that will likely become a 3/3 with prowess hate. I love that it gets bigger and makes spell flingers have a bad day.

The Viashino Firstblade is my favorite Boros three drop. I love swinging with a 4/4 on turn 3. The damage spike is massive, and most of your foes will not be expecting it. A Firstblade who gets through will typically ensure your victory, provided you have a spell to play next turn.

The Hellrider acts as a finisher. Assuming one creature per turn, he swings for an automatic 4 damage. Usually this is enough to end the game, but even if its not, it forces removal.

Lightning bolt is an automatic four of in any red deck ever. Too good to ignore. No explanation needed.

Boros Charm's versatility is excellent, though usually you'll be using the burn option. Four damage to the face is more than this deck is capable of hitting with the Double Strike option, though Indestructibility for all your creatures is potentially an option as well.

Lightning Helix is the best of the two mana burn spells that can hit both creatures and players. I prefer to shoot it to the dome of my enemy when I have a creature or two in play, but sometimes you need to clear away something that'd otherwise block you. It's versatile, and helps you to not die against other aggressive decks.