Your Goliath Barbarian needs a unique background that will impact its choices, plus the way it sees the world and what it would like to achieve. If I were being to build an Artificer for hardcore that went to endgame (or a minimum of epics) I would likely build matters https://louisfyofw.blogspothub.com/27745397/5-simple-statements-about-elf-5e-race-explained