When this card is activated: You can Set 1 “The Sanctuary in the Sky” or 1 Spell/Trap that lists that card in its text directly from your Deck to your field. This card’s name becomes “The Sanctuary in the Sky” while face-up on the field or in the GY. You can banish 1 Fairy monster from your GY, then target 1 Effect Monster your opponent controls; negate its effects until the end of this turn. You can only use this effect of “Lost Sanctuary” once per turn. You can only activate 1 “Lost Sanctuary” per turn.