Complex sentence: He serves as the Smurfs'leader and as a paternal figure of which the Smurfs usually go to when they require counsel and he is always concerned about the Smurf's wellbeing and harmony.
Split into simpler sentences: He serves as the Smurfs'leader and as a paternal figure to whom the Smurfs usually go to when they require counsel. He is always concerned about the Smurf's wellbeing and harmony.