If you can read French, here is the first news of Eredan :
http://blog.eredan.com/2009/04/April 2009, Feerik was doing playtest with real cards, and character design was in progress.
The universe was created for this game (and ifs companion Eredan GT)
The Beta test was open between December 2009 and March 2010
The opening of the game was on April 12th 2010
Amnezy is the mascot of the game from the beginning. My memory can fail me, but if I remember well, she is (in the story) the sister of Telendar. So every one believe that the character will be printed on a card (and a Zil one of course). But the staff decided otherwise and she will stay the mascot of the game.
For the others characters, there is a big lore and a lot to speak about.