The Curse Pot is a special pot that will spawn in every level
Breaking a Curse Pot will always drop one diamond worth 5000 and have the ghost spawn soon after. If it directly hits a character (including yourself), it will give them the Cursed effect reducing the players HP to 1. This can only be reversed through death.
Because of how it spawns the ghost after breaking, it should only be broken close to the exit to maximize value. Breaking the pot while the ghost has already spawned does not spawn a second ghost.