Wow and i thought that after all this years, having a complete Dex save (or in this case a way to mass inject) was easy.
Oh, btw I injected the Eon Ticket in ORAS but i can't trigger the event, i got the item in my bag but Norman don't trigger the event flag. Maybe i'm missing something?
Bank shifting more or less confirms if your Pokemon is legal (though their hack checking sucks), and that the data goes into your pokedex.
Once mass ejector is setup, Mass injection will also be good, provided no issues crop up.
For now, one can mass inject Into ORAS,
Then bank the critters into Sun and Moon.
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Regarding the eon ticket problem, I actually know the cause.
When the first eon ticket popped up on projectpokemon, it didn't work too.
Apparently when you receive the wondercard, it also activates another flag.
So if said flag isn't activated, even if you inject the wondercard, it wouldn't work.
PKhex now automatically sets the value when you import it.
I'm not sure what the value is, but a before and after comparison will probably suffice.