OK, so, Life has some decent denial in the form of Discords, some decent PC in the form of a few Deflags and a few Steals, and some decent defense in the form of Dim Shield and Antimatter. What they don't show is any Purifies, which makes me think that Poison Stall is the way to go here.
They also have few non-creature offense cards -- a few Ice Bolts and a few Fire Bolts -- and I doubt they'll be able to stall enough to use those for an OHK. So, if we can deny creature attacks and stack poison, we can take this one. They have Forest Spirit, which means that Wings and Antimatter aren't great options. I think this deck is 70/30 -- if they pick something way off-center, it will fail epically, but against almost any creature-heavy deck, it should ace them.
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Basically, unless they take Thorn Carapace to ruin the Squids, or Quint a bunch of stuff, this deck WILL lock them down and WILL poison them out -- and even if they do, there's a Fractal thrown in there so that you can storm Squids for a few rounds in order to get a few to survive long enough to Freeze a few things before they drop. Alternately, Nils can upgrade 3 of the Squids to make them super-effective, but I think that fast Quints are the essence (no pun intended) of this deck.
Death looks like it's all into the spider/wings rush set this War. Denial is a few discords and a few Quakes. Pleasingly, there is also NO PERMANENT CONTROL here at all. They are, however, packing mad creature control, so outrushing them with a traditional rush is going to be hard. No Purifies seen, however, so rah.
I think this is going to be pretty easy with a variant of the deck I used in Round 1.
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Possibly add a third Ice Shield just to make sure it comes out early?
Death's vault is very permanent-heavy; they had a permanent in every deck last round. Deflags won't help much against Bone Walls, but if they're trying to stall out with Bones, kill them with Bolts. If they're going to rush, use Bolts as CC, build up Steam Machines, and Deflag their shield in time for the kill. It's not perfect, but it's also not what they'll expect, which is what wins in War.
Fire is a bitch. But wouldn't you know it, there are a total of
three creatures in their Vault that can survive a Shockwave. Their defenses might include Dim Shields, which is a pain in the ass, but that's what our old friend Icebolt is for!
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Pretty straightforward: Infect creatures that aren't huge, Shockwave ones that are, slow everything down with Ice Shield and Arctic Squid, and bolt to death when necessary. (Alternately, stack 4 Squids and skip the Ice Shields to make Deflag a useless card.) The big risk here is if they play Fire Stall, then you're kind of screwed. But that's kind of the risk we have to take, at this point.
ALTERNATELY: Because that strategy is kind of obvious, they might play a simple Phoenix deck (to avoid CC) packed with CC and PC in order to kill whatever we try to do. In that case, this deck -- which will STILL lose to Fire Stall, but will cause all of their control cards to clog their hand because it has NOTHING BUT SPELLS -- will rock.
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Of course, it does require spending 6 Propaganda Cards on 4x Nova and 2x Reflective Shield, but I think those are good investments over the long run regardless.
Whaddya think?