Magic and Black Magic

This article serves to clarify the meta definition of "black magic" with regards to this campaign.

When the world sank, almost all knowledge of magic was lost. This includes almost all sorcerous bloodlines, druidic rites, methods of creating magic items and the music of creation utilised by bards, as well as of course the formulae and knowledge utilised by wizards.
Divine magic is a related but different story. With such a dramatic drop in population, and the survivors' basic needs taking priority over worship, the gods that provided divine magic simply didn't have the worshippers to power their spells. Though stories of some of these gods were passed down, most of the pantheon faded into distant obscurity.
The discovery (or re-discovery) of The Magi Tower has allowed some arcane knowledge to be rediscovered. The current state of this magical knowledge is limited in two main ways: spells require complex magical circles and diagrams to be drawn, and the most powerful members of The Order of Magi are just about able to cast spells of 3rd level, but no higher level spells have been re-discovered.
in 702AS, Taranthia outlawed 'black magic'. This phrase largely refers to any magic not attributed to The Order of Magi. The most common forms of this are pact magic from warlocks and sorcerers from the rare surviving bloodlines, or new sorcerous origins that have emerged in the world in extreme cases.