They've trademarked "Dungeons and Dragons" branding and those bits of the D&D brand that are actually at least somewhat unique rather than directly based on oth

They've trademarked "Dungeons and Dragons" branding and those bits of the D&D brand that are actually at least somewhat unique rather than directly based on other fantasy sources (this is part of why, for example, tieflings are fairly prominent in newer editions). There are plenty of things in D&D that would be protected by neither copyright nor trademark because they aren't even close to being original or unique to D&D: fighters, wizards, orcs, dungeons, dragons, taverns, elves, gnomes, the list goes on and on...