You use the card containing the code for the HAMMER, as well as the one with the random code you punched over the SHAVING CREAM card for the hell of it. You carve the respective TOTEMS for the cards.
Hey check it out. Every week we'll be revealing some new troll characters from Hiveswap until Act 2 is out. Follow the Troll Call here, and meet the first two here. Expect a few more surprises like this to drop in coming weeks.