Burn
A Modern deck, by Jasper Johnson-Epstein
14th place at a tournament in Toronto, Canada on 2012-12-09
As reported at http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/eventcoverage/gptor12/welcome#dl

Maindeck:

Creatures
4 Goblin Guide
3 Grim Lavamancer
4 Hellspark Elemental
4 Keldon Marauders
4 Vexing Devil

Instants
3 Flames of the Blood Hand
4 Lightning Bolt
1 Shard Volley
1 Sudden Shock

Sorceries
4 Bump in the Night
4 Lava Spike
4 Rift Bolt

Basic Lands
7 Mountain

Lands
4 Arid Mesa
4 Blackcleave Cliffs
1 Blood Crypt
4 Scalding Tarn

Sideboard:
1 Cunning Sparkmage
1 Grim Lavamancer
3 Rakdos Charm
4 Searing Blaze
2 Sudden Shock
4 Thoughtseize