 Grey Guards possess an incredible amount of durability, speed and accuracy.They can stay up nearly all night and not get tired, they have exceptional smell and can sniff nearly anything out no matter how far away it is.The various pods have names, such as "Carn pod", and an identical pod is grown in time to replace the ageing pod, so that to the populace it seems that Carn pod goes to the Shadowlands and then Carn pod returns invigorated, good for another seven years.