Alive without breath, As cold as death, Clad in mail never clinking, Never thirsty, ever drinking

Common Wrong Answers
“A snake”
While a snake is alive and can be cold-blooded, it breathes air and does not fit the description of 'clad in mail'.
“An ice cube”
An ice cube is not alive, and although it is cold, it does not drink or have breath.
“A frog”
A frog is alive and can be cold-blooded, but it breathes air and does not fit the description of being 'clad in mail'.
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