Kitsuni Kitsunebi (MP24-EN341) [25th Anniversary Tin: Dueling Mirrors]

All face-up monsters on the field become FIRE. If your opponent has a FIRE monster on their field or in their GY, while this card is in your GY: You can Special Summon this card. You can only use this effect of "Kitsuni Kitsunebi" once per turn.