[AUTO]: When a card named "Gravity Ball Dragon" rides this unit, look at up to seven cards from the top of your deck, search for up to one card named "Gravity Collapse Dragon" or "Schwarzschild Dragon" from among them, reveal it to your opponent, put it to your hand and shuffle your deck.
[AUTO]: When a «Link Joker» not named "Gravity Ball Dragon" rides this unit, you may call this card to (RC).