When Geralt of Rivia begins his journey through The Witcher 3's two story DLCs, Hearts of Stone and Blood & Wine, his Gwent deck should already be quite formidable. Between the "Collect 'Em All" mission and the "Card Collector" trophy/achievement, Geralt should be able to take down any card-slinging foe the continent is likely to throw at him. This doesn't mean, however, that the new content doesn't add more cards for Geralt to obsessively hunt down, roaming from town to town begging for matches.