Consumable slots
Combat Settings (C) set when the Health Potion is used and which consumables are used automatically. A hero who dies revives on its own after 8 seconds, or goes back to town.
Auto-use slots
"One slot per consumable type: only one buff per type can be held, so each slot takes a Combat Potion, a Utility Potion or a Food. Assigned consumables are used automatically from your inventory during combat whenever their buff isn't active."
All three slots start locked; each is opened by a Life Skill. Two consumables are never used less than 0.2 seconds apart.
Unlock a slot for a combat potion, which is used automatically during combat whenever its buff is not active. (2,500 gold)
Unlock a slot for a utility potion, which is used automatically during combat whenever its buff is not active. (25,000 gold)
Unlock a slot for a food, which is used automatically during combat whenever its buff is not active. (100,000 gold)