Complex sentence: She is portrayed as a Lady Macbeth-like character: a powerful sorceress, a Machiavellian mastermind and a skilled warrior with incestuous lust for her half-sister Morgana, whom she seeks to set up as Queen of Camelot.
Split into simpler sentences: She is portrayed as a Lady Macbeth-like character: a powerful sorceress, a Machiavellian mastermind and a skilled warrior. She conspires with her half-sister Morgana, whom she seeks to set up as Queen of Camelot.