Believe it or not, until I cracked open the fifth-edition Monster Manual, I’d never heard of chuuls. I got into role-playing games with Advanced Dungeons and Dragons, back when God’s grandma was a little girl, and we didn’t have chuuls back then, not even in the Flumph Folio. According to the all-knowing Wikipedia, chuuls were introduced in the third edition. (Maybe not so all-knowing: it describes them as “extremely intelligent,” while according to the 5E MM, they have Intelligence 5.)
Chuuls are, more or less, enormous, semi-uplifted crayfish, servants of the mighty, ancient aboleths. They’re amphibious, chosen for their role because of their ability to survive on land as well as in the water. They’re larger than human-size and exceptionally strong and tough, predisposing them to be brute fighters. Although they’re not exceptionally dexterous, their chitin gives them an armor class of 16. They can sense magic, and we can infer from the flavor text that they’re drawn to it, obeying an ancient, instinctual command to gather powerful items for the aboleths that ruled them.
Chuuls have darkvision, suggesting that they move about on open land only at night and spend the rest of their time either underground or underwater. Judging from the flavor text, they don’t seem to have a lot of motivation to go wandering around but rather will stick close to locations that they feel some urge or duty to guard. They aren’t conscious of any such duty, however: with Intelligence 5, they operate strictly by instinct. (more…)