Tonics and grenades appear under the potion list as they are all managed the same way in-game, with the Equip Potions and Upgrade Potions tables. The Equip Potions station is used to add a potion to the potion belt. The Upgrade Potions station can be used to upgrade the potions and improve their effectiveness. There are several upgrade options available for each potion; each upgrade costs many herbs. Fully upgrading a potion will slightly increase the cost of crafting it.