Castle of Dark Illusions (MRD-EN073) - Metal Raiders (25th Anniversary Edition) Unlimited

FLIP: Increases the ATK and DEF of all Zombie-type monsters by 200 points. As long as this card remains face-up on the Field, the ATK and DEF of Zombie-type monsters continues to increase by 200 points during each of your Standby Phases. This effect continues until your 4th turn after the card is activated.