Steam Maiden, Ishin

(This ability is active if you have one or more face up G units in total on your or G zone): 1 When your opponent's rear-guard is put into his or her deck due to an effect from one of your cards., you may pay the cost. If you do, until end of turn, this unit gets ":When this unit attacks a vanguard, until end of that battle, your opponent cannot call grade 0 cards from hand to .". //:Resist (This unit cannot be chosen by the effects of your opponent's cards)