The player suggested that the ability to don or doff armor being an action is really a magical house of Arcane Armor which supersedes the traditional time requirements. The DM allowed the warforged artificer to get rid of the Arcane Armor being an action, and later defined the ruling on https://kyleriezxs.anchor-blog.com/8353157/an-unbiased-view-of-dnd-high-elf