:During your turn, when your G unit with "Blue Wave" in its original card name Stride, choose up to one card from your hand with "Blue Wave" in its card name, call it to , choose a rear-guard with "Blue Wave" in its card name, and until end of turn, it gets ":At the end of the battle that this unit attacked a vanguard, choose this unit and one of your other rear-guards in the same column as this unit and exchange their positions.".