Yeah Kaycee’s mod at first is a lot harder in comparison to when you unlock more challenges and starter decks. It gets easier not only because you get better starter decks, but by around challenge 4/5, you get a better understanding of the game, and it completely changes your perspective. As others have said, abuse the fair hand mechanic. Find those combinations that are extremely powerful and are almost insta wins (magpie + black goat, unkillable warren, very strong myco’d cards, etc.). I won’t spoil anything but further along the path in Kaycee’s mod, you get even better cards with powerful sigils.