Scrolls - Mojang's new game

The trials? I started with the growth preconstruct, and I couldn't do anything. I switched to the energy deck, and now I'm a few battles into the medium series, doing them in order.

I'm not sure if my ineptitude was the deck, or I just wasn't familiar with the mechanics yet, but the growth deck did nothing for me. I tried the Order deck twice, and it seems like a major weenie deck.