eleganzis

How do I get it from a trade in home? In that app I see only note, transfer, pokemon go, points, settings and champions

Hello, with the advent of pokemon champions I have been able to use my modded 3ds and the pokemon bank to send myself all the pokemons I need up to gen 7, but I recently discovered that Eternal-Floette can be obtained only if you buy pokemon legends ZA or if someone trades it to you, but exactly how does it work? I have only one switch game which is pokemon pearl, how can someone send me floette eternal there if that alternate form doesn't exist there? Can someone clarify how does it work? Thank you!