Wasteland Virus

Grapple (When this creature blocks or becomes blocked by a creature, you may remove both of them from combat. If you do, attach Wasteland Virus to that creature. It becomes an equipment for as long as it is attached to that creature.)
{4}{u}{u}: If Wasteland Virus is equipped to a creature, gain control of that creature. Then, exile Wasteland Virus and return it to the battlefield.