Talk:Ben 10: Twin Omnitrixes/@comment-5486221-20170311103815/@comment-35864512-20180629100442

While Matrices is the plural of Matrix, the word "Omnitrix" is a name, which means you can say "Omnitrixes" for the same reason you can say "The clones attacked! We've got some Jessies over here!" instead of "Jessii".