My deck is made for tournament play and is rather good, almost all the creatures have haste. The deck is made so that my direct damage spells kill off the player while my small creatures block or deal a bit of damage by surprising the opponent with haste.

Deck List:

Lands:
Mountain (x19)

Creatures:
Raging Goblin (x4)
Dragon Whelp (x1)
Furnace Whelp (x1)
Mudbutton Torchrunner (x2)
Tar Pitcher (x1)
Fire Elemental (x1)
Kamahl, Pit Fighter (x1)
Lightning Elemental (or Lightning Ball) (x2)
Prodigal Pyromancer (x1)

Others:
Threaten (x1)
Blame Rift (x1)
Beacon of Destruction (x1)
Tarfire (x2)
Shock (x4)
Incinerate (x2)
Sudden Shock (x1)
Lightning Blast (x2)
Ignite memories (x1)
Gratuitous Violence (x1)
Seal of Fire (x3)
Dragon's Claw (x1)

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You mentioned that this is a tournament deck, but you didn’t mention which format, so I am going to assume it is supposed to be Standard legal, where this deck should have the best chance of winning. If you are looking for haste creatures backed up by lots of burn, I am going to point you in the direction of Elementals. They have gotten pretty good in the past two sets, plus they are easy to find right now.

First, cut the cards that are no longer legal, including Fire Elemental, Flame Rift, Lightning Blast, Seal of Fire, and Gratuitous Violence. Also cut Dragon’s Claw. Life gain has no business being in this deck.

Second, rebuild the creature base. Elementals give you great one drops in the form of Spark Elemental, Flamekin Bladewhirl, and Flamekin Harbinger. Sunfire Elemental is an average two drop that becomes ridiculous in the late game (he can easily be activated for ten or more with a full graveyard). Inner-Flame Acolyte is another quality, hasty elemental. Vengeful Firebrand is a great card that can smack for five or more damage out of nowhere. Nobody hits harder than Nova Chaser, just be careful when you play him.

Lastly, add in your tricks. Try to keep things as simple as possible. Eight burns spells ought to be plenty. If you find that it is not enough, Thunderblade Charge or Sudden Shock might be other good additions. Above all else, don’t put in Tarfire. It does nothing that Shock won’t do, but it will pump your opponent’s Tarmogoyfs.

If, at some point, you want to take this deck to the next level, try splashing black with Primal Beyond and Sulfurous Springs for Shriekmaw and Nameless Inversion. It will give the deck much better results in today’s environment.

Firestorm.dec v1.1
28/8/24
4 Flamekin Harbinger
4 Spark Elemental
4 Flamekin Bladewhirl
4 Sunfire Elemental
4 Inner-Flame Acolyte
4 Nova Chaser
4 Vengeful Firebrand

4 Incinerate
4 Rift Bolt

4 Mutavault
20 Mountain