This is my mildly competitive Flame Jab deck.
If you don't know, Flame Jab is really weak unless you accompany it with Pyromancer's Swath and Burning Vengeance. Use Life from the Loam to dredge, then cast for land, and use the land for Flame Jab.
Faithless Looting and Desperate Ravings help you get through your deck pretty quickly, finding the cards you need to start the combo. Blue was added to the deck for Desperate Ravings flashback cost.
Explore and Harrow are used for mana acceleration. Personally, I prefer Explore to Rampant Growth and it seems to be fitting just fine in this deck. It's surprising how often I Harrow into Explore into Faithless Looting.
Lightning Bolt is just there for basic protection while I set up.
The sideboard is decently standard. Spell Snare to help with those Tarmogoyfs, Snapcaster Mages, and Dark Confidants. Ancient Grudge is for artifact hate and can help against the Modular match-up (though it's usually too slow). Everlasting Torment to get around life gain and really big creatures. Simic Charm is just tempo disruption and protection for your enchantments (usually side this in round 2) and Volcanic Fallout is just a nice board wipe against most decks.
The maybe board consists of stuff to bump this deck to an actual competitive level. I proxied it once and held it's own against Zoo and Modular (though barely survived the Mod) and a few other decks. Replace Explore with Farseek and Tibalt, the Fiend-Blooded / 2 Pyromancer's Swath with the 3x Slagstorm.
Just prewarning, any sort of Graveyard hate, mainly Tormod's Crypt and Rest in Peace will KILL this deck, so play cautiously around those 2 cards (and by that I mean auto-lose).
Hope you enjoy, any comments would be nice.