Well, I'm trying to make our decks as adaptable as possible. Instead of taking a bunch of 30 card decks against 110 other decks, why not take a little less 30 card decks that can swap out a few cards and handle different decks. Hell, ANY deck can beat aether if it rushes well and has explosions. And death? Screwed if you pack purify! Earth? Go for a deck that can survive off it's mark (Rustler rush/growth).
Each deck needs to be able to handle 110 other decks, in theory.
...maybe I'm going about this the wrong way.