My attempt at building a standard competitive deck. The idea is pretty simple: Red Deck Wins. Attack and Burn the other guy to death before they can do anything too scary.
Lightning Strike, Flames of the Firebrand, and Magma Jet are the core burn. The Flames can also split damage if I need to clear out some 1/1s and the Jet gives me some draw control with scry.
Skullcrack and Fated Conflagration are more focused, killing players while stopping life gain (from Sphinx's Revelation perhaps) and killing big creatures or planeswalkers respectively. The scry on Conflagration is nice too.
Rakdos Cackler and Gore-House Chainwalker can both be dropped with a +1/+1 counter for fast aggo. Firedrinker Satyr is effeceint for it's cost and has fire breathing. Chandra's Phoenix is fast, flying, and hard to kill.
Fanatic of Mogis is a nice little burn spell if you have a few creatures on the field. With either a Hammer or Pheonix out he'll burn for 3, which isn't a bad bonus for a 4/2 swinger.
Hammer of Purphoros gives everyone haste, and can produce 3/3s out of extra mountains.
Chandra, Pyromaster can push your attackers through with her +1, or provide free burn with her 0. Her 0 combos well with the scry on Magma Jet or Fated Conflagration. Her -7 is ok, but should always hit for at least 9 total damage (divided among any number of targets if you copy Flames of the Firebrand)
Sideboard:Mugging and Anger of the Gods should be switched in in mirror/other early aggro decks.
Act of Treason is good against midrange and beatdown decks.
Peak Eruption is red hate and Mindsparker is blue/white hate.