So I have bought 3 potions for BE, 2 small 1 big and no change has happened to my character and my stats still read 1. I'm afraid you might have missed some line regarding a variable.
Edit: Ok so I have gotten it to happen it seems that one level is 5 small BE potions, i'll take the L on this one
same here(edit never mind it worked you just need to buy alot like with the slime here.is the proof)