Steam Breath Dragon

:[Choose a grade 3 card from your hand, and reveal it] When this unit is placed on from hand, you may pay the cost. If you do, search your deck for up to one grade 3 card with "Chronojet" in its card name, reveal it to your opponent, put it into your hand, shuffle your deck, choose a card from your hand, and discard it. (Hand):While you are paying the cost for , this card gets grade +2.