Well, that deck I posted for Terro looks like it might be his best choice... We know all of the cards entropy has of their own element, except for maybe five, three they discarded from their suicide, and a possible two more that they could have had and not put in that deck. I'm pretty sure it would only be three from their suicide deck though.
Zeru would most likely use his rainbow deck, since they know it works and it's a very important match. I don't know that our other two decks could beat it. The poison one stands a chance probably, and can beat whatever deck they make out of the rest of their entropy cards. Here's their suicide deck from last round:
4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vf 4vf 4vf 4vf 4vf 4vg 4vg 4vi 4vi 4vj 4vl 4vl 4vl 4vo 4vo 5uk 5uk 5uk 5uk 5uk 5uk 5uk 5uk 5ul 5ul 5um 5um 5up 5up 5uu 5uu 5uu 5uu 5uu 61o 61o 61o 61t 621 621 621 621
As for the fire matches, it's a tough decision. Either both of us can take decks, the flying discord and the earth/time decks, or one of us could take one of those, and the other take a suicide. If we suicided, we'd have to decide which deck to take and who to take it against.
Here is fire's suicide from last round:
4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vj 4vl 4vl 4vl 4vn 4vn 52g 52g 52g 52g 52g 52r 52r 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f2 5f2 5f2 5f3 5f3 5f3 5f3 5f3 5f3 5f5 5f6 5f7 5f7 5fb 5fb 5fc 5fc 5i7 5i7 5i7 5ia 5up 621 622
Since they are fielding three people, they probably got rid of as few fire cards as they could, so they probably gave up three like entropy would have (most likely).
If fire is any kind of "intelligent," they will see that entropy most likely has three discords for the deck they will likely use. The deck they have that counters that, other than taking a bunch of deflags, is their nova deck, which also has several deflags already, so that makes it more likely that they will use it there.
That leaves Antagon's fractal phoenix deck, which only he can use, and whatever they can make using at least 15 fire cards from the suicide above (although they have so many, it will likely be mostly fire). Here is the deck they would probably make (something similar to it anyway):
5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f2 5f3 5f3 5f3 5f3 5f3 5f6 5f6 5f6 5f7 5f7 61q 61q 61q 61q 61q 61q
The other deck that Antagon could possibly take is this:
4vl 4vl 55q 590 590 5c1 5c1 5f0 5f0 5f0 5f0 5f0 5f3 5f3 5f3 5f6 5fb 5fb 5fb 5fb 5fb 5fb 5og 5og 6u3 6u3 6u3 6u3 6u3 6u3
Him taking that would probably mean they couldn't use their novas against entropy's discords, so it's probably not likely.
So I imagine that Antagon will use the fractal phoenix, Corrum will use their fire/aether (he also used it in R6), and girls will use their nova deck.
The discord deck is probably our best bet against Antagon's fractal phoenix. The discord deck would probably be our best bet against their fire/aether deck as well, as long as the discords stall their aether quanta long enough to get some burrowed shriekers out. The time/earth deck MIGHT be able to beat the fractal phoenix deck... this may be something we should test. It definitely couldn't beat the aether deck due to the lightnings. At least I don't think it could.
So if we all take decks, Terro would probably take the flying arsenic deck, Azumi could take either the discord deck or the earth/time deck if testing goes well, and my only option is probably the discord deck.
I think I can test the earth/time vs fractal/phoenix on my own with my two accounts. Depending on how that goes, I'll post my comment about whether or not it would be a good idea for me to take a suicide deck and let Azumi take the discord deck, or let him take the earth/time and me the discord.
Of course, if anyone disagrees, speak up.