I really hope it's either "none" or minimal. Though if there is prevalent magic, it would have to fit the tone of the setting, so I bet it will be gritty and visceral as hell. Like [url=http://whitewolf.wikia.com/wiki/Vicissitude]the Tzimisces' Vicissitude magic[/url] in the OWoD lore, or something Lovecraftian.