Gives your characters a warrior look (even if you don't call them a warrior in the prompt).
Note that, like its creator, this model believes in the rule of cool and has no opinion about the real-world practicality of armor on fictional characters. If you want practical, realistic armor, put words like this in the prompt (potentially weighted higher than 1):
armor
faulds
pauldrons
chestplate
shield
etc
...and maybe add "nsfw" to your negative prompt if that's not enough.