Not sure if it’s intended but seems pretty bad if so. Apparently, Wallow loses all the Dark Gifts it had gained while in your hand if it’s shuffled in your deck again. Specifically if you choose the Dark Gift that puts the minion on top of your deck with a buff, Wallow will also put itself second and lose all other gifts.
I didn’t get to play the card and confirm this but I could see that the list of dark gifts in the card description when hovering now said it only had that 1 gift.