The Blue Men of Minch

There are a lot of murfolk myths and legends out there that involve the creatures having some degree of control over or knowledge of weather and storms. The blue men were said to look like normal humans, except with entirely blue skin and gray beards. They would summon fierce storms against trespassing human ships and wreck them. But wise captains knew that the blue men loved rhyming contests, so they could earn the ship's safety if they just had some great rhymes up their sleeves.