Good day, I have 4 copies of this card (2 normal and 2 golden), they are from the Ashes of the Outland set, but now in my collection it is written they are in the Core set. Does it mean that once there will be another Core set rotation they will take my cards away again? (It happned so with Dr. Boom, which I received through a pack, but this card is gone now, because of the rotation.)