Once the Torc was granded from the Heart, a powerful otherdimensional and evil entity, but the Heart and thus all the torcs were destroyed by Eddie Drood who found out what the power came form. Then to get a Torc from the Heart you had to sacrifice your own twin.
But Eddie find a new good otherdimensional entity that was even stronger than the Heart, it was the strange matter. At first only Eddie got the new silver Torc but soon the other Droods got a torc too and the colour was changed in gold. There wasn't a price anymore to pay except to amuse the strange matter which called itself Ethel. From there on the Drood-Torc and armour were much more flexible and every armour-shape or thing was possible as long as you can imagine it. For exsample forming things like swords out of the armour or hacking a computer with it.