@Override
  public void do_spell(IMagicEntity magic_caster, Entity target, Stats stat) {
    EntityDoppleganger entity;
    Entity caster;

    caster = magic_caster.getEntity();
    entity = new EntityDoppleganger(caster.worldObj, caster);
    entity.setLocationAndAngles(caster.posX + 1, caster.posY, caster.posZ, 0.1f, 0.1f);
    caster.worldObj.spawnEntityInWorld(entity);
    entity = new EntityDoppleganger(caster.worldObj, caster);
    entity.setLocationAndAngles(caster.posX - 1, caster.posY, caster.posZ, 0.1f, 0.1f);
    caster.worldObj.spawnEntityInWorld(entity);
  }
 @Override
 public void do_spell(IMagicEntity caster, Entity target, Stats stat) {
   caster.getEntity().addPotionEffect(new PotionEffect(Potion.invisibility.id, 10 * 20));
 }