Constructors

Better.js

var Mage = {
  cast: function _cast() {
    console.log(this.name + ' cast ' + magic);
  }
};

var BlackMage = {
  fira: function _fira() { this.cast('fira') },
  watera: function _watera() { this.cast('watera') }
  blizarra: function _blizarra(){ this.cast('blizarra') } 
};

// pd - https://github.com/Raynos/pd

var mage = createMage = function _createMage(name) {
  return Object.create(Mage, pd({
    name: name,
    job: 'Mage'
  });
};

var blackMage = createblackMage = function _createBlackMage(name) {
  return Object.create(pd.merge(Mage, BlackMage), pd({
    name: name,
    job: 'BlackMage'
  });
};