Kato Katonian on Twitter: "There's actually a sly reference to Warduke in “Xanathar's Guide to Everything” in the Dread Helm magic item. It is reprinted here, but now with accompanying art. Art:
Dark Souls… – The D&D Chick's Blog
Helm of the Dread Lord | Dungeon Crawl Classics | Obsidian Portal
Helm of Dread by FourWingedArtist on DeviantArt
Helm of Brilliance - Magic Items - D&D Beyond
ART] Helmet of the Dread Titan (comission) : r/DnD
Dread Helm
Beast Master's Crimson Horns - AQW
Discussions and Dragons: The D&D (and Pathfinder) Any Edition Megathread | Page 248 | SpaceBattles
EVA foam Helm of Dread for my DND game. : r/cosplayprops