Kasha

Kasha is a technique used in High School DxD.

Summary
A Senjutsu technique typically preformed by Youkai's such as Nekomata's by gathering enough Ki. It's said to lure the dead to the other world.

Abilities
The user uses their Ki to create multiple huge wheels covered in spiritual white flames that have the power of purification. The user(s) fire them with a swing of their arms at their targets which then turns them to ash upon contact. The spinning wheels can also change its course in the air and follow its target.

As shown by Kuroka, the flames turn black when infused with Demonic Power for extra enhancements.