5 main stat rolls were possible several patches back before ancient legendaries and just after level 70 became the level cap. Now the only way to achieve that is one weapons (with ram's gift) or on such items as Gift of Silaria that as a bonus always roll a 5th main stat like faster movement speed, some do Crit Damage. The Doombringer is another such example. One amulet does come to mind: Flavor of Time, however it might have two of the 5 main stats as movement speed and CD. None of the legendary items with a 5th main stat have orange text and usually correctly chosen orange text is better anyway. The same goes for best possible amulet rolls, it's best to have an extremely lucky Hellfire Amulet (helpful passive) or orange text legendary amulet if you need that particular orange text bonus.