So uh,,, NPCs scale exponentially and Kitsune Rematch scales linearly so I may or may not have a Pine with Infinite/Infinite thighs (max value of floats in JS) that deals over 9000 000 damage per turn :)
Yeah that tends to happen. Overfeeding Pine is definitely a way to break the game. I've already nerfed her a couple times in the past and I was considering changing her damage formula again (this time to a logarithmic scaling with diminishing returns) but I'm not sure yet.