swampfire
The Omnitrix's sample of a Methanosian in the Ben 10 franchise, first introduced as one of Ben's ten aliens in Ben 10: Alien Force. Its evolved form, Ultimate Swampfire, appears in Ben 10: Ultimate Alien.
The Omnitrix's sample of a Methanosian in the Ben 10 franchise, first introduced as one of Ben's ten aliens in Ben 10: Alien Force. Its evolved form, Ultimate Swampfire, appears in Ben 10: Ultimate Alien.
