"How could he be able to keep playing if the fumes are blinding?" Jaskier asks suspiciously.
"...I was distinguishing them by touch," Geralt admits.
"I knew it! I knew you cheated at Gwent somehow!"
"Well," Karon hedges, "I wouldn't say it's cheating, exactly, they get battered and it's just we're better at -"
"All witchers cheat at Gwent?" Jaskier says in horror. "Is nothing sacred to you people?"
"Jaskier, I've seen you stow half a deck up your sleeves."
"That's an accepted part of the game! Anyone can do that!"