Tidekiller crabs are fearsome and territorial beasts with a history of crushing any creature that comes too close. They patrol their coastal territory with an implacable zeal and bring any interesting or shiny things they find back to their lair, usually an underwater cave where they won’t be disturbed during their sleep.

There have been occasions where tidekillers have been tamed and trained to carry heavy objects and people like a mount, and in a few places they are even bred for common use. Taming a wild one isn’t advisable, though, for many a would-be crab tamer (or hunter) was sorely disappointed to find its tough shell nearly impenetrable. Bronze dragons sometimes like to feast on them.