SireSamuel: Potions with a cooldown would end up like D3 on this aspect. I remember mashing the potion key almost yelling: Drink Dumbass !!!
Also, here potions work on a duration, not flat hp, making this pointless. You don't heal more nor stack duration by chugging your whole belt.
Cool think would be that tome of town portal gives: +1 to town portal. Been caught tp'less too often lol.