virtual double action_multiplier() const override
  {
    double m = warlock_spell_t::action_multiplier();

    if ( p() -> mastery_spells.chaotic_energies -> ok() )
    {
      double chaotic_energies_rng = rng().range( 0, p() -> cache.mastery_value() );
      m *= 1.0 + chaotic_energies_rng;
    }

    return m;
  }