Yes, the untapped power that lies within you. Now, child, it's time you awakened that power and realized your full potential.
Prime - Maleficent 6★ Medal
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Slow is a Magic Command found in Kingdom Hearts Birth by Sleep. It slows down the movements and attacks of enemies within a certain radius.

Origin

The Magic Slow originated in the Final Fantasy Series to allow the player to get in more hits before the enemy. Its counterpart is Haste.