Off and on with Gwent quests. I'm currently level 18, just arrived at Skellige. I've battled quite a few people in gwent and purchased a dozen or so cards. Thing is that I can't find the cards I need to finish my northern realms deck. I have maybe 20 out of 45. I can't beat the Baron because I did a side quest that he died after. The side quest for gwent wants me to fight the soothslayer and one other person. I've downloaded the app gwentracker and followed that for certain cards but the places it says to go don't have the card I need. What do I do? It seems like I should have done this while doing the main story. Should I just start a second game later? Unless I go to every shop and buy cards then battle I can randomly get what I need.