So I'm really confused aboit pic related. Earlier today, I put an Eevee and the Fennekin I got from Shauna in the Day-Care center and I got an egg. Well I don't have anyone with Flame Body lr Magma Armor, but I've been running this egg around forever and nothing's come of it. The description hasn't changed or anything. And to make it even weirder, it shows it as in a Dusk Ball.

What the hell is this? It seems like a badegg but I've never cheated or done anything weird to my game, it just makes no sense