Exchange of Despair and Hope

If you control 3 or more EARTH Fairy monsters: Send as many monsters on the field as possible to the GY, then each player can Special Summon monsters from their opponent's GY to their field up to the number of monsters that were sent to their opponent's GY by this effect, then, if "Exchange of the Spirit" is in your GY, you can Set 1 Trap directly from your Deck. It can be activated this turn. You can only activate 1 "Exchange of Despair and Hope" per turn.