Potion Stamp is a Legends of Idleon item: quest reward, upgrade material. +% Effect from Boost Food, like Potions and stuff, like, such as!

Potion Stamp | Idleon Toolbox

+% Effect from Boost Food, like Potions and stuff, like, such as!

Potion_Stamp

Coins

Hold down to gain EXP in the skill that's displayed in the corner of your screen. If you're in a town, you will gain EXP in the town skill. The amount of EXP you get is based on your skill's Lv.

Small_Experience_Balloon

Increases Mining Speed by 15% 10% chance to be consumed every time you swing your pickaxe. Must be equipped in a Food Slot to give its bonus.

Icing_Ironbite

Vitality_Stamp

Mana_Stamp

Target_Stamp

Bring more stamps, but not so many that the pig would have to pay Stampcome Tax