"Armor Ninja" is a "Ninja" sub-series used by Kaze in Yu-Gi-Oh! ZEXAL, consisting of four Effect Monsters (one for each elemental Attribute, making this a Four Elements series) and two Xyz Monsters. Their main strategy is to swarm the field quickly and modify Levels in order to Xyz Summon almost instantly. They are supported by cards such as "Ninja Grandmaster Hanzo" and "Upstart Golden Ninja". "Earth Armor Ninja" is the main monster. Combine it with "Air Armor Ninja" to Xyz Summon "Blade Armor Ninja" or combine with "Flame Armor Ninja" to Xyz Summon "Number 12: Crimson Shadow Armor Ninja".