I agree, potions needs to stack. But they definitely don't need to be like candles ! Candles can help you survive/kill while potions can make you unvulnerable.
Thomas wrote:one idea is to give rare potion and rare food +1 use for every grade up This means g1= 1 charge, g2= 2 charges, .... g4= can use it 4times.
What about this suggestion? It seems like a pretty good idea.