Though you have posted a tremendous amount of decks that are great and certainly powerful. I'd love if we could get a few more options of other decks from other elements so we have some inspiration with our salvage
Well, in a lot of splash decks like these, the Fire cards have zero synergy with the off-element cards, they merely serve as the damage output. In this case, it's better to fill these parts last per round, with what's left in vault to play with. Often resulting in Crimson Dragons, Seraphs and Brimstone Eaters, probably with some Deflagration/Fahrenheit if deemed necessary.
As a result, each and every one of them will likely be weak to CC decks, since Phoenix/Fire Bolt are already the main cards in many powerful decks.
For full-fledged duos or trios (RoL-Hope <3) we can always think of them as we salvage stuff.