Stormjoys were non-sapient predatory creatures native to the gas giant Fundament. Described as "living clouds," they would drift over land masses and dangle tentacles tipped with "bait stars" to attract and catch prey. In the Osmium Court, they were known as a good way for an old person to choose death. A daring knight could also cut off the bait stars from the tentacles. Xi Ro bragged that she had six.