Potions of gain attributes are potions that, when drunk, raise the PC's attributes. Uncursed potions raise one random stat by one, while blessed potions raise all stats by one. Cursed potions reduce a random stat. Only one potion of gain attributes can be blessed using one potion of holy water. Potions of gain attributes do not increase stat potentials, except if the stat was at its potential already — in which case it is increased by one (along with stat itself, e.g. 18/18 turn into 19/19), since potential can never be lower than the actual natural stat.