virtual void trigger_natures_balance( action_state_t* s, dot_t* d )
  {
    if ( ! p() -> talent.natures_balance -> ok() )
      return;
    if ( ! result_is_hit( s -> result ) )
      return;

    timespan_t extension;

    if ( d == td( d -> target ) -> dots.moonfire )
      extension = timespan_t::from_seconds( p() -> talent.natures_balance -> effectN( 1 ).base_value() );
    else if ( d == td( d -> target ) -> dots.sunfire )
      extension = timespan_t::from_seconds( p() -> talent.natures_balance -> effectN( 2 ).base_value() );

    // Nature's Balance may only extend the DoT to 20 seconds remaining.
    d -> extend_duration( extension, timespan_t::from_seconds( 20.0 ) );
  }