All native Crinosians know at least a little of the native Sha'Crin, unless they make a strong effort to ignore it. You will be able to cast very minor spells and cantrips in one or two poses. Don't worry about purchasing the Sorcery power or hanging spells if you have purchased it: This is a native talent. However, the spells are not particularly powerful unless you've purchased the Sorcery power. And Sha'Crin spells do NOT work outside of Crinos. If you wish to learn spells to use outside of Crinos, you must purchase the Sorcery power, AND ICly learn Sorcery from someone who knows it, generally a non-Crinosian. The standard MUSH Sorcery works fine within Crinos.