Question regarding wondercards and Gen 7

[Wormdog]

I wanted to find an answer regarding wonder cards and event pokemon from previous generations being genned into SuMo. Will i need to inject the wondercard into this save if it is from a previous game in pkhex? Specifically I dragged a shiny sludge wave gengar into pkhex without importing the wondercard and it was registered as legal and i was able to use it online without an issue, Just wanted to make sure what i did is all right in the case that i would import other event pokemon in the future, thanks!

 

Edited February 20, 2017 by Wormdog