An Iron Heart is an uncommon fang which can be used by Zephyr. "A fang made to extol dauntless heroes. Affords high defense." This article is a stub. You can help the Oninaki Wiki by expanding it. Retrieved from "https://oninaki.fandom.com/wiki/Iron_Heart?oldid=762" Categories: Article stubs Fangs Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.