This seems like the kind of puzzle that would be much easier in a physical form, but then again it's not often a great puzzle game like this comes along. Still a good game, but very fiddly.
has anyone ever played a psp game called field commander. this game and it are incredibly similar, just psp has a 3d map with rotating camera and different units
the problem with ADD CRYSTALS: the other add ____ cards all use crystals as a cost. paying 5 crystals to get 8 crystals doesn't make it as good as the other cards, since you're only gaining 3 of the resource instead of 8. its simple maths.