Well after 45 minutes of buying potions, I've come to the conclusion that this is probably the best potion buying simulator out right now.
Hired 3 heroes
Had to order the 3rd one to stop
Grind 35 minutes of buying one potion a piece for heroes 1 & 2
The only action I'm doing is buying potions
Picking the occasional gifted attribute bonus
Notice that there is no efficient way to obtain gold
Going back and forth buying my two remaining heroes potions
They are slowly dying and gold is coming in slower
I don't think there is a real feel purpose to this game.
You should add an overwhelming amount of extra content.