[@Avanhelsing]

The plot is rather Voodoo or Elemental, Ancesteral Sorcery. If you do VooDoo you posses powers to physically harm other people; while Elemental witches have more power from the elements around them, and aren't really about hurting people they deem good.

-and yes, you may have roommates! Just remember to get another persons permission or create another character to live with you! I'll set the maximum of three roommates to a house. :)