Board Thread:General Discussion/@comment-34841753-20180227180657/@comment-24922135-20180228000438

An Omnitrix wielder from the future showed up in like two panels of some obscure story, the Tetramand (and I think one or two other Ben 10 species) showed up as background members of the Green Lantern corps in a panel showing loads of different GL members.

Remember, DC did own the rights to the Ben 10 comics for a while.