A legality question about Wondercard pokemon from other regions

[Mewtwo]

If I were to insert a Japanese Wondercard into my English save file, and receive the pokemon on my english game, would the pokemon appear hacked after I received it?

[Sabresite]

The only time pokemon become hacked is if you receive a korean on a non-korean game, or vice versa. The only exception to that is the worldwide weaville.