Gems of Forethought are essence gems which grant small bonuses to one of the ability scores at the expense of receiving fewer power-ups after combat. There are three types of Gem of Forethought: * Warrior's gems, which boost Body at the expense of Health power-ups. * Monk's gems, which boost Spirit at the expense of Chi power-ups. * Scholar's gems, which boost Mind at the expense of Focus power-ups. Gems of Forethought are the opposite of Gems of Fate, which tip the balance between ability scores and power-up generation in the other direction.