Salvages:
Deck 1: If we had Immofodder we could use this and our Phoenixes to make an Immo deck, but we don't so I don't think
cards are a good choice here. I'd say take the Graboid, the 2 EQs, a Fog Shield, and then... Anything, I suppose. 2 spare cards to convert. (Or 2 Chaos Seeds for our Entropy deck)
Deck 2: 5 Novas and a Graboid maybe?
Deck 3: The 2 Discs and AMs for sure, after that 2x converting cards, I'd say Frogs because they have the best chance of actually being useful in a tight spot.
Discarding:
Deck 1: If we ditch the SS here then we'll only have 6 of them left, and we'll need to fuel The Immortal and an Wings/OE deck (If we don't take SS or Wings (4x Wings 2x OE), 3x Antlion 2x BB 1x Pillar/Pend may work). Unless we actually plan to use the Wings deck this round I'd take the Antlions and BBs.
Deck 2: Take 4 Graboids, that, combined with Salvages and the rest of the cards we save, will give our Nova/Graboid one more shot.
Decki 3: I'd say 1 Nova, 1 Purple Dragon, 2 AMs, 1 Disc, and then 1 BB or Dragon. If we don't save the BBs from either this deck or the Wings one, then we'll be left with 2, which I don't think we should do.
With these we should have these decks left:
Nova/Graboid
AM/Discord