Interdimensional Dragon, Heteroround Dragon

(Usable when both fighters' vanguards are grade 3 or greater, and the number of face up G guardians in your G zone is three or less)-Opponent Turn's Guard Step-[Choose a card with "[Heal] Heal" from your hand, and discard it] Call this card to your from face down. : 1 When this unit is placed on , if you have a vanguard with "Chronojet" in its card name, you may pay the cost. If you do, choose one of your opponent's rear-guards. Your opponent returns that unit to his or her deck, shuffles his or her deck, looks at the top card of his or her deck, and calls it to .