Socerer spell creation

[koden-km]

Sorcerers used the pentagram altar like thing to charge their spell items. For NWN i don't have an altar that matches the visual, but it could be done with a plain altar and certain positions in its inventory? Alternatively using a pentagram visual effect on the ground and some small static but useable containers placed at each point could be looked at for specific candles and reagent items to craft.