just a title like Witch or Wizard. most people i've met who call themselves Mage though practice Dragon Magick but the title isn't limited to them. just like many men call themselves a Witch over a wizard. it's just preference from what i can tell.
A mage, in todays times, is often referred to as a person who practices occult arts, like a witch. Mage is the anglicised version of the word Magus(singular) or Magi (plural).
Originally, the Magi were the sixth tribe of the Medes, who were people of Indo-Iranian (Aryan) origin that inhabited the western and north western portion of modern day Iran. By the 6th Century BC (prior to Persian invasion), the Medes had established an empire that stretched from modern-day Azerbaijan to Central Asia and Afganisthan.
The Magi tribe was a hereditary caste of supremely intelligent priests, shamans and astrologers of Zurvanism--an occult religion, which was an offshoot of Zoroastrianism. It is believed that the Magi knew all the secrets of the universe. Secrets that havent been unravelled even today. Many believe that they were the first practitioners of magic art, which eventually filtered down to other occult cultures.
While the power of the Magi grew in the Median empire, the power was curtailed by Persian invasion. Feeling persecuted the Magi settled in Greece, where people called them Magoi.
Very little is known about their practises. They were very reclusive and extremely secretive about what they could do. Im guessing thats what any one would do when theyve been entrusted with so much information. The popularly known Magi are the ones who visited Christ during his birth. Theyre often mistaken for oriental kings. They completed a journey by following a star. Naturally theyd follow stars, as they were master astrologers, which made them brilliant navigators as well.
Dragon Magick, basically, it's incorporating dragons into your magic work, so instead of calling upon the Lord and Lady in a spell, you would call forth a dragon. there's a lot more to it than that, but basically that's it. it's a form of high magic, and it's very solitary. keep in mind dragons are astral, not physical beings, so you'll need to be able to project, or connect with them through meditation. i wrote an article on it answering some frequently asked questions, there's also some good sites that could help like fox-moon.