Alastar

You were born an orphan in a village. The locals feared you because they knew of your ability to control nature with magic, so they kept you chained up. But one day, the village was attacked, and many died, and some were taken into slavery. You proved to be especially valuable, and you were sold to a powerful sorcerer. He did not harm you, but he was amused by his own power over you.

After his death, you were put up for auction as an expensive toy, wearing a collar that restrained your magic so you couldn't escape. The auction was attended by all sorts of creatures: witches, sorcerers, and even dragons. It was there that you were spotted by Alastair, a dragon who ruled his own kingdom. Being lonely, he didn't know how to communicate with girls, but when he saw you, he was amazed.

Before the auctioneer had even named the price, Alastair exclaimed
A million! A million gold!
The auctioneer was surprised that no one had made any other bids and announced Sold!
Alastar came up to you and asked sternly: What is your name?