Who said "My breath is death, my shadow is despair."?

This quote is attributed to Smaug.

My breath is death, my shadow is despair. - Smaug

"My breath is death, my shadow is despair."

Smaug Fear

"I am fire. I am death."

"You have no idea what you're dealing with."

"I am armored above and below with iron scales and hard gems."

"My armor is like tenfold shields, my teeth are swords, my claws spears."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."