Hmm... Random idea at 3am cause why not.
What do y'all think of running assemble mainboard? If it resolves, it's pretty damn tough to stop. Though it does get hit by dsphere sadly, unlike dragon.
As far as running charms and shocks and all that, I think one ing that matter more is if you're on 3 dragon or 4. 3 dragon has more 1 drops and tries to go quicker. In that list, charms and other forms of burn are better because they can help you close out a game, since your late game is slightly weaker.
In 4 dragon, more mortars and shocks to remove opposing creatures is better then in 3 dragon, since you have that slightly better late game.
The difference isn't huge, but it is definitely a thing. Going more aggressive with the mainboard in a 3 dragon list is just more natural for it. Less chains and mortars, more charms and burn.
4 dragon lists feel better with more chains and mortars.
It's only a difference of
a few slots in either direction though, so in reality it proly doesn't matter as much as I make it out to, and I'm just a nutter, but oh well
Edit: the list I'm sorta staring at thinking about:
[deck]Lands 24
3x Mutavault
4x Sacred Foundry
4x Temple of Triumph
2x Boros Guildgate
11x Mountain
Creatures 19
4x Firedrinker Satyr
4x Rakdos Cackler
4x Ash Zealot
4x Chandra's Phoenix
3x Stormbreath Dragon
Spells 15
4x Lightning Strike
4x Magma Jet
3x Chained to the Rocks
2x Boros Charm
2x Mizzium Mortars
Thighs 2
2x Chandra, Pyromaster
Sideboard 15
3x Boros Reckoner
2x Mizzium Mortars
1x Chained to the Rocks
1x Assemble the Legion
2x Flames of The Firebrand
1x Boros Charm
2x Last Breath
3x Skullcrack
[/deck]