Yeah, I'd have more Permafrost just to do more stalling, but 1 Shield isn't so bad as it prevents dead draws. I think that number of pends is okay, if you take into account how must
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1 Physalia needs per turn vs. how much
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1 pend generates per turn.
I'd do:
-3 Arctic Squid
+3 Lance/Arsenic/Dessication/Congeal
You don't need THAT many creatures/damage, right?