"Supreme Art - Hijack." Katarina said as she activated her other Supreme Art.
Normally, a person only had a single Supreme Art and was unable to use others.
All other techniques were derived from the main one so they could not be considered a new one but a variety.
But Katarina's magic, Ruler magic allowed her to possess different types of magic. In other words, she was capable of using different Supreme Arts.
Ruler Phantom was the derivative of all the other magic she used her magic to gather, not the main Ruler magic itself.
Hijack, an art that works only after certain conditions have been met.
One, an overwhelming victory against the target of the technique.
Two, a what is being hijacked must not be too involved with the target of the technique.
And three, the user must desire the object to be hijacked from the bottom of her heart.