Potion of Diminution
Property [Consumable]: As an action, you drink the potion. You shrink to 10 percent of your normal size and weight. Although you retain your game statistics, you deal only 10 percent of the damage you normally deal (minimum 1). Thanks to your reduced size, you can gain cover from smaller objects than normal and can more easily attempt to hide behind such objects. You can also stow away inside containers that would ordinarily be too small to hold you. The effect lasts for 1d4 hours.
A character who samples this transparent fluid feels his or her body being squeezed slightly. Observers notice that the character becomes a bit smaller for a moment. On drinking this potion, everything the imbiber sees seems to grow larger, as if the imbiber has entered a land of giants.