This is a deck i like to play often. It is really fast, and contains a lot of damage. Blue can be problems though, sideboard accordingly.
4x Ball Lightning
4x Shivan Dragon
4x Lightning Bolt
4x Incinerate
4x Fling
4x Fireblast
4x Blood Lust
2x Hammer of Boragdan
4x Pillage
4x Viashino Sandstalker
4x Rathi Dragon
20x Mountain
It burns up your opponent really quick. Remember the fling ball lightning combo though. Massive quick damage.