Miroku

A lecherous monk. His great-grandfather was cursed by Naraku, and so Miroku has a wind tunnel in his right hand. Miroku is able to control the wind tunnel by covering it with prayer beads when he doesn't want to use it.

If Miroku uses his wind tunnel when there (is a/are) (demon/demons) with demonic poison, the wind tunnel will suck (the demon/demons) with the demonic poison and spread throughout Miroku's body. Since Miroku is a Buddhist monk, a little bit of the poison won't kill him; if he has a lot of demonic poison it incapacitates him.