Strong Sword

Rachel (The Organization's Current Number 5), is the only one using this technique.

Fight with Rufil of the west
Rachelis seen using her "Strong Sword" technique against Riful Of The West), attacking Riful without hesitation.

She stands in a weird stance and make her sword run from within the ground and using that as a restraint and the moment she springs her sword from the earth she can bring forth an attack with high power and speed cutting down everything in its path. This move can also be performed off the ground with the help of another comrade's blade to act as the restraint for Rachel's sword.

With the help of Audrey (The Organization's Current Number 3) she cuts Riful using Strong Sword technique. But since Riful's body is made of strips that attack didn't work on her.