Iron Claw Dragon, Gargrex

:When this unit is rode upon by "Iron Arm Dragon, Gargrex", look at the top five cards of your deck, choose up to one Dinodragon from among them, reveal it and put it into hand, and shuffle the deck. :When this card is discarded from hand during your turn or retired from by a card's ability during your turn, if you have a Dinodragon vanguard, put this card into soul.