[G Guardian](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" from your hand, and discard it] Call this card to your from face down. []:Resist (This unit cannot be chosen by the effects of your opponent's cards) :When this unit is placed on , choose one of your rear-guards, and until end of turn, that unit cannot be hit, and cannot be chosen by the effects of your opponent's cards. :This card is from all clans and nations.