Fun Time Explorer's Club
A mysterious card player.
The party met Vayne Hall in Chapter 2 at the crossroads just north of Grey Tower.
He gave them a magical card in exchange for a set of loaded dice that a cheat named Handrick had been using. He told the party that once they had enough cards he would play a game with them. If they won he would grant them a wish.
Elminster Aumar revealed that Vayne Hall is an avatar of a god so secretive that his name is unknown to all.
Hall lives in a pocket dimension that the party has visited. For the time he is trapped there. He claims he has lived for at least 1000 years.