Card Rulings:Tour Bus From the Underworld

OCG Rulings

 * If "Tour Bus From the Underworld" is sent to the Graveyard from the hand, from the Deck or while face-down to the Graveyard, its effect still activates. Also, if "Tour Bus From the Underworld" is sent to the Graveyard while being treated as an Xyz Material, its effect still activates.