The Black Guard of Morr in full suits of obsidian armour, which is responsible for their name of the Black Guard of Morr.
Full obsidian armour is a full suit of ornate plate armour crafted, as the name suggests, from obsidian.[1a]
The Black Guard of Morr take their name from the massive suits of full plate armour they wear, ornately crafted from pieces of obsidian. Obsidian armour is bulky, but the sinister appearance it gives its wearer strikes fear into the hearts of all who face them in battle.[1a]
Obsidian armour is almost always worn as a full suit—the disadvantages caused by its bulk make it impractical to use without the advantage of the intimidation factor. Since obsidian is the bane of magic, the armour has some measure of magical resistance.[1a]