Plasmoid: As a consequence of Unarmored Defense, barbarians can actually get a stunning number of use out of the Amorphous trait. Sad to say, you won't manage to have your greataxe with you with the holes, but a Tavern Brawler build could make for an exceptionally interesting barbarian plasmoid. Warforged: https://aarakocrawizard35689.onesmablog.com/the-greatest-guide-to-dnd-elf-warrior-68135634