So this is Midrange Burn. I wouldn't call it Big Red, but it's kind of in the same vein... Maybe a distant cousin? Idk.
Gameplan
You basically burn out everything that hits their side of the field, set up Panharmonicon and maybe even burn their facehole a bit too. Then, in the later game bring all the burn back to super burn their facehole til they die. Unfortunately deciding whether to dome them with a burn spell, or to burn out their creatures is a very thin line to walk. It's not the easiest deck to play, but it is pretty fun.
Burn
Shock - Use as you see fit. It's really ok to 2-for-1 something if it gets it off the field. It's really ok to shock someone in the face as well if nothing's going on.
Galvanic Bombardment - Play if at all possible. It kills things. You want things killed.
Incendiary Flow - Very underappreciated card. See a Scrapheap Scrounger? You won't ever see it again! Burn out key creatures, or dome them. Whichever. It puts in work against the Scrounger tho.
Collective Defiance - Usually you'll pay 4 to burn out a creature as well as hit them for 3.
Fiery Temper - Don't be afraid to bite the bullet and burn a creature for 3 mana at the end of their turn. Is still very useful without madness.
Card Draw
Tormenting Voice - It's a very needed card in this deck. We very much need to draw cards and this gets us there.
Sin Prodder - RESOLVE THIS CARD AT ALL COSTS. People don't seem to realize that it's pretty much the lynch pin of this deck and will generally overlook it. You NEED the card draw it provides, or the burn it provides. I'd say about 75% of the time it's doing something good for you. Menace is also a fairly unappreciated ability. Card is solid here.
Set Up and Finishers
Panharmonicon - If you were going to trim the deck this card goes first. It combos with Goblin Dark-Dwellers and Combustible Gearhulk very nicely but since it does nothing when it comes into play more often than not I'll pass it up to play other stuff.
Goblin Dark-Dwellers - GREAT CARD. Does everything we want to do here. It brings back burn/draw power, it makes another menace swinger. It's good. RIDICULOUS WITH PANHARMONICON.
Combustible Gearhulk - It works. It's pretty great to see on Sin Prodder's upkeep ability, and I don't mind if they make us pitch it for 6 damage. It's also a 6/6 First Strike body that either burns them or draws us into cards that burn them. It probably could be cut for more burn, but it fits fairly well.
Chandra, Flamecaller - Fantastic card. Drop it in and boardwipe. Drop it in and draw +1 to what you had. Drop it in and swing 6 damage. Very good stabilizer. Also, it's nice to see with a Sin Prodder. Worst case she'll burn them for 6 if they send her to grave.
Sideboard
Sorry the board isn't quite complete because I haven't tested it with the black mana, but I splashed black in it so I could blow up creatures unconditionally. I'll have to see what direction I can take it.
Burn from Within - Is nice for some additional burn to the face. It's not even funny how many times I've been 6-7 away and could only burn for 5-6 >.> Also, it hasn't come up, but it's possible to just burn away big creatures. Mostly was put in to finish them.
Galvanic Bombardment - For aggro.
Unlicensed Disintegration - I'd assume it's nice to have unconditional removal, but I have yet to test out this side board.
Weaver of Lightning - I needed the reach against Heart of Kiran. Was originally in there for Smuggler's Copter but... well I don't need to worry about that anymore lol.
And that's all folks. Thanks for checking this list out.