My understanding is that Curse counts as a supply pile for purposes of 3 piles being depleted ending the game. However in this game (see attached), the game continued. Might be due to the extra action card pile due to Young Witch. Am I understanding the rules incorrectly or is this a mistake?
The rule is that with 5+ players, 4 piles need to be empty to end the game. The idea being, so many players deplete cards faster than 2 or 3, so 3 piles are empty faster.