Dark how do you?

Do the poke poke poke thing with your swords and the thing where you stable them into the ground with the shock wave. I haven't seen them on the skills list, do you need to rank up a certain skill, or is there some kind of skill scroll?

It`s called Smash: Thousand Needles, the shock wave is enabled when you level it to rank 9

http://www.vindictuswiki.com/wiki/Smash:_Thousand_Needles