Black Hole Law and Ripple Sword seemed similar, but in reality, they had significant differences.
Apart from Black Hole Law, many Law Skills could also achieve the effect of "teleportation," yet these skills, without exception, consumed Spirituality, had long wind-up and cooldown times (meaning long activation and recovery periods), and required calculations and so on.
Conversely, the Ripple Sword brought teleportation to its ultimate expression: zero consumption, instantaneous casting, no need for calculations, allowing one to whizz back and forth with ease, unquestionably possessing extreme deterrence on the ever-changing battlefield.
Of course, Black Hole Law also had its advantages, such as when exploring certain places.
Facing a wall, Mia silently unleashed her Spirituality and began to observe the space beyond the wall.
Kapei was right, within the inner layer of the wall, indeed there was some mystical force sealing it and preventing the infiltration of outside forces.