I've never played a hex-based card-battling strategy game before,
As opposed to the rest of us who are burned out on the whole hex-based turn based strategy collectable card game with genre. Come ON developers, how about something original?!
Going through Bill Harris's tutorials is a really good idea. The game can seem a bit intimidating at first but if you can make it through the first few awkward games it's so much fun.
As odd as it may sound, switch to first person shooter controls ASAP. The interface works a lot better if you use WASD + mouse controls instead of just using the mouse.