def wave3(self):
    res = self.advancewave()
    if (res < 0):
        return (- 1)
    res = self.attack()
    if (res < 0):
        return (- 1)
    self.usecard(self.xy_npa)
    self.usecard(self.xy_card2)
    self.usecard(self.xy_card3)
    return 0
def wave3(self):
    res = self.advancewave()
    if (res < 0):
        return (- 1)
    res = self.attack()
    if (res < 0):
        return (- 1)
    self.usecard(self.xy_npa)
    self.usecard(self.xy_card2)
    self.usecard(self.xy_card3)
    return 0