Sword Coast Traders' Bank
In addition to serving as a normal bank, providing loans and wealth-keeping services, this holding of House Anteos is also capable of taking in coin in one of its three locations (Waterdeep, Baldur's Gate, and Daggerford), and communicating those numbers to any of its other branches magically, almost instantaneously.
Realmspace
Toril
Faerûn
West Faerûn
Western Heartlands
Bank
1 Points