Yellow Zelkova

"You Impress Me Hero Of Kumogakure But This Battle Is Not Over"

Zelkova is one of the four Metarex Commanders that try to destroy Astral World and also Astral told him that Zelkova have the piece to his memory which is Manny's and even as that also He was under of Dark Oak command to destroy Astral World

but as even also Zelkova was so tough to fight in combat and He try to kidnap Merag and Rose being taken to Dark Oak He was stopped by Manny and Nasch from getting them into prison and as that Zelkova is very strong but tough to duel and even also that was even lost by Manny's Halo Hawk and Nasch's Finbarr