Hello! Gorgeous artwork but question about PNP printing. It says to print them single sided and then use the last page OR double sided and print them back to back but also says this will make the black and white design on the back of each page.. Am I missing something? Was the intention for us to make copies of the last page and alternate it between the encounter pages and THEN print duplex? because If I print as downloaded I'll have the monsters on both sides of each card?