As long as this card remains face-up on the field, all Spirit monsters remain face-up on the field and do not return to their owners'' hands during the End Phase even if they are Summoned or flipped face-up. Discard 1 card from your hand during each of your End Phases. If you do not, this card is destroyed. If this card is destroyed or removed from the field, all face-up Spirit monsters must return to the owners'' hands immediately.