nce idea I believe there were some programs available for free a few years back to make magic the gathering like cards wouldn't be too suprised to see other/similar programs out there. You could use those to get started they might need a few tweaks here and there though ^^.
ConsEDIT: considering the resource idea I would go with wood, stone, iron, gold, diamond and emerald since all tols are made of those and you could us emerald as a wild card for example.