Plunder

Plunder may refer to:
 * Looting - An ability that can also be referred to as Plunder.
 * Plunder - Episode 10 of the anime.

Plunder is Yu's actual ability. He used this to take all the supernatural powers in the world to save the ability users and to complete the promise with Nao.

As Yu possesses someone, he then takes the supernatural ability of that person, or in other words, loots it.