From Luchawiki

Multiple luchadors have used the name Arkanos

There's at least two recent Mexico City luchadors who've used that name. One started using it at least as far as 2006, and lost his mask in 2008. He's often teamed with Okawa. Another luchador used the name in the early 2010s, before switching to Rey Lobo Jr. in 2015. It's not especially clear when one stopped and another used the name

There is also a luchador listed as Arkano, which may just be a misspelling.