RDW

[Karrthus]

RDW 60 cards, 0 sideboard 4 {Hellion Crucible} 18 {Mountain} 22 lands 4 {Stromkirk Noble} 4 {Ash Zealot} 4 {Vexing Devil} 3 {Lightning Mauler} 4 {Rakdos Cackler} 1 {Archwing Dragon} 20 creatures 3 {Reforge the Soul} 4 {Searing Spear} 2 {Brimstone Volley} 3 {Flames of the Firebrand} 3 {Pillar of Flame} 3 {Mizzium Mortars} 18 other spells Sideboard

[Karrthus]

Don't have a sideboard yet.

[Shivix]

{banefire} and {shrine of burning rage} are probably too slow, maybe replace them with a 4th {Lava spike} and some {searing blaze} and {Molten rain}.

Also I'd recommend {Teetering peaks} instead of {keldon megaliths}.

[Karrthus]

Will probably try the {Molten Rain} in place of {Banefire}, but the shrine is just amazing. Everytime it's in play if it doesn't win me the game it has alot to do with the win.

[ChrisRodriguez]

How about trying adding these cards.
{Ghitu encampment}
{Keldon marauders}
{Figure of destiny}
{Hellspark elemental} add 1 more
{Hell's thunder}
{Shard volley}
{Magma spray}

[Karrthus]

Updated: I took some of the suggestions and added to the deck. Thanks guys, it runs awsome. I completely owned and it ran so much smoother.