Where you see a bunch of aggressive creatures, I see cannon fodder. Literally. Creatures I intend to shoot out of my cannon. (Look at the card art). I tested stormbreath a few revisions back and cut it. It is a good card in almost every red deck, but this isn't almost every red deck.
I do have some games where my token production is sufficient to keep my opponent's board more or less clear and also apply significant pressure. Those games happen maybe 1/3 of the time. Goblin rabblemaster enables this sort of game. Stormbreath is good here, because even if my opponent spends a turn to hit it with flesh to dust then I still did 4 damage and got in with my tokens. These fast wins around turn 5-8 are often enabled when brain maggot cripples an opponent's deck. Sometimes my opponent has a decent life total and drops a fatty, but I treason the fatty and swing in with my team.
The more common scenario is that I manage to clear my opponent's board by turn 5-6, but just barely. I sac most of my own creatures to station, my most dangerous and fast creatures often eat removal, and I am left swinging in for two or three a turn with leftover tokens. Sooner or later, my opponent starts dropping bombs or making bigger plays, and my 3 acts of treason and 3 ground assault are put to the test. Sometimes I barely damage my opponent, but mycoloth comes in to save the day when I fling it into my opponent's face. I often manage to fling mycoloth just as my opponent does something like get off a huge spider spawning. In these relatively stalled out games, I often do not inflict very much damage upon my opponent, and decks that drop a lot of bombs can become worrisome since blasting station loses its value.
Stormbreath doesn't need just 1 or 2 turns to close out the game, it is often more like 3 or 4. It is a fine card, I just don't consider it the red baneslayer. BSA is amazing when your back is against the wall because she is an incredible blocker who will heal you for 5 per turn. Stormbreath is just a mediocre blocker. There are some matchups where we are on the beatdown, e.g. against ramp into fat decks we do not have enough removal to cope with their late game, and they will not play many early creatures meaning we will have a decent board. As far as the monstrous ability, I am not a big fan of abilities that do face damage only. I have fling for the face damage role, it is cheaper, unblockable, and generally does more damage.
Sheoldred is kind of slow, that is the whole point. I didn't just design this deck around blasting station and creatures to sac to it. Blasting station does
not speed up the deck or make it more aggressive. It usually slows the game down and creates a board stall, which allows me to abuse a number of card advantage engines:
Goblin Rabblemaster gives me a token every turn
Graveborn Muse draws me a card every turn
Vengevine and
Masked Admirers can be recurred for fun and profit
Mycoloth gives me a metric ton of tokens and is my primary fling target.
Charmbreaker Devils will give me a spell every turn and is a secondary fling target. The
number of sorceries / instants to pump him up with is relatively low, but their
quality is very high, since half of our spells are either ground assault or treason.
Sheoldred, Whispering One is my curve-topper at 7 mana. Due to the ability of blasting station to clear smaller creatures off the board her edict ability is highly relevant. By the time I play her it is all but guaranteed that I have a number of creatures that went into my GY. Even if my opponent was way ahead in life total she alters the board so much in a few turns that they cannot come back in the game.
Except for the Rabblemaster, which is simply overpowered, you could cut all or most of these slow cards out and add more aggression.
Trumpet Blast.
Wrecking Ogre,
Ogre Battledriver,
Hellspark Elemental,
Raid Bombardment,
Kathari Bomber. This would make it more likely that the deck can kill off an opponent's key creatures and then swing for the win to close down the game. Stormbreath totally belongs in that build. Blasting station can easily be used to start going to the face if your opponent gets ahead on board. But we are talking about an entirely different decklist here.