-Pokenavs or the region-in-question equivalent. automatically 'exchanges' money with the person I battle with. So if I gotta Pokemon holding it, it will put into account if it was in the battle. If this was the case, it doubles the total. -Perhaps money received 'doubles' the amount. Like a ATM combined with a money-printing press.
In my Pokemon X, I have 2 amulet coins and a lucky incense; 3 of my team members hold the items, and I make sure that each goes into battle at least once while I re-run the elite 4. And that, ladies and gentlemen, is how I pay for the clothes in the Lumiose City Boutique. xD
I so imagined this yesterday & the last few days I was playing pokemon OR I brought 2 luck incense & finally got the amulet coin from mom in the game & I was thinking how much $ do these characters have ? Don't they ever run out ? Doubt it who cares I need it even more ! Lol