Parasitic Oni (TCG)

The Parasitic Oni announced its presence by buzzing like a locust in the practitioner's mind. It infected anyone the mahō-tsukai wished, entering through the victim's ear and slowly consuming them from the inside out, driving them beyond the edge before eventually killing them. It wanted name and form. Given form, it appeared as a swarm of locusts, which could infect a whole castle or town. It was extremely difficult to contain and control.