When this card is active, Spirit Monsters on both sides of the field do not return to their owner’s hand during the End Phase of the turn they were Summoned.
Discarding 1 card during your End Phase is a maintenance cost and must be paid each turn. You may decide to not discard a card, and destroy this card instead.
When this card is active, Spirit Monsters may still be returned to their owner’s hands by card effects such as "Penguin Soldier" and "Compulsory Evacuation Device".