Honestly, I don't know if we need to do it deck by deck. We can, but we can also look at how earth is typically used and what it is typically used with. Earth has speed and defense. To counter our speed, they'd take either control, or something that is comparably fast. They may also take defense, such as aether or darkness (the shields). To counter our defense, they could take swarm decks, fractal decks, denial decks, and pillarless decks.. I'm probably leaving stuff out.
They'd also want to counter our synergy decks (darkness, gravity, fire).
We must also expect some people to plan for us to build decks that counter them.
The thing that is probably our greatest weapon is surprise. If we make some decks that aren't typical of earth, there's a good chance they won't have planned for it and won't have the right deck to beat ours.
Just to list some things they might do:
Entropy may use discords and antimatters, slowing us down and rendering our creatures useless. A strategy for this would be steals/explosions, growth decks, poison decks, stall decks, low quanta use decks, and that's all I can think of for the moment.
Time would probably use rewinds on us and speed themselves up a bit. So creatureless may be useful. They may also use scarab decks.
Gravity will probably take otys and gravity shields.
Water and air would probably take freezes and shockwaves. Air would also have gases, so we could counter that with destruction and healing.
Death would definitely take bonewalls and poison, plus creature control.
That's all I deel like doing for now... I know, it's definitely not everything they could use against us.
One last thing though, when we find out who everyone is playing against, we can look at who the people from each element we are up against and see what they would take against other people so we can guess what they'd take against us.
