Mirage takes from the opponent’s hand. I assume the one you were replying to was talking about specific cards that add to the opponent’s hand. Usually cards with this effect will have a specific list of cards that it will pull from. But that could change, cards are added every day.
I think it’s okay, it’s probably meant to be played with other cards that generate cards.
There’s a whole meta for that.
Out of curiosity, are the cards that are generated pulled off a list of cards outside a person’s deck or pulled from the person’s deck?
Mirage takes from the opponent’s hand. I assume the one you were replying to was talking about specific cards that add to the opponent’s hand. Usually cards with this effect will have a specific list of cards that it will pull from. But that could change, cards are added every day.
I’m talking about the cards that generate cards. edit: spacing
Sorry! I sent the first comment too early. I updated my comment after initially posting it with, hopefully, more relevant information.