My character is a green dragon wyrmling named Corpsedusk, the emerald corsair.

He dwelled in the sewers for his entire life, crawling around winding corridors, swimming in muck, and flying in the larger interiors of the place.

He is fascinated by magic and would love to one day learn some.

Eventually, he got it in his head, while listening to his voice echoing down the passageways, that he could pretend to be a dark power that would issue orders to other dwellers down bellow.

Corpsedusk playing god had mixed results. He has plans of using illusion magic in the future to enhance his god-sona.

One of his other megolomaniac plans is to make a magically enhanced poison. He shall force/trick prospective servants to drink it, and he can trigger the poison at any time, which will dissolve the hapless sap into glowing green goo on the ground. In corpsedusks mind, this would ensure complete loyalty and adoration.

As for his name and title, he chose his name himself. And his title, the emerald corsair, was given to him by other sewer denizens due to his penchant to swoop down, take something, and swim away. Imagine a sewer pirate.