Sample list...
Creatures
4 x Goblin Guide
4 x Hellspark Elemental
4 x Plated Geopede
4 x Hell's Thunder
4 x Ball Lightning
1 x Obsidian Fireheart
Sorceries
3 x Earthquake
4 x Quenchable Fire
Instants
4 x Burst Lightning
4 x Lightning Bolt
Lands
4 x Scalding Tarns
4 x Arid Mesa
4 x Teetering Peeks
12 x Mountain
Sideboard
4 x Goblin Ruinblaster
3 x Manabarbs
3 x Chandra Nalaar
3 x Punishing Fire
2 x Unstable Footing
One of the fastest decks in the format, however things are looking pretty bleak with Kor Firewalker on the way. The deck will probably survive but will have to be able to deal with the firewalker, where's Ghostfire when you need it? Hmm maybe in Rise of the Eldrazi...