Ok, I don't know if I'm just an idiot or forgot some detail after waiting so long. But, can anyone tell me what the 11th slot/hole on the coin holder is for? And why it's the only one that is cut all the way through? Clearly it's not connected to the other 10 surges via the lines, is it just for any other random dragonsteel coin? Seems oddly out of place within such a singular themed set.