>>17845102It isn't that you do/don't have the items, those items were never released for Diamond and Pearl, so Pokemon Bank just has checks where it was caught and you could not legitimately catch Darkrai in Diamond and Pearl. If I genned a Mew caught on Route 3 in Black 2 it wouldn't pass the Pokemon Bank check, some games/locations are labeled as not possible and thus "fake."
I'm bummed because my first legit shiny was the Darkrai I walked through walls to get in diamond, and I know that Pokemon Bank will say it is fake.