- This card can be searched by "A Cat of Ill Omen", "Primathmech Alembertian", "Trap Trick", "Lilith, Lady of Lament", "Celestial Knightlord Parshath" and "Fallen Sanctuary".
- This card can also be activated while you control "The Sanctum of Parshath" or "Fallen Sanctuary", whose names are changed to "The Sanctuary in the Sky" while on the field.
- This card is useful for knowing your opponent's hand in order to hit it further with "Mind Crush" or similar cards. Or, this card can bypass targeting and destruction immunity to remove a card from your opponent's field.
- This card's discard cost can be used to trigger the effects of "Fabled" monsters, "Lightserpent" and "Performage Trick Clown".