From Lexicanum
The
Phylactery is part of the
Necron Armoury and can only be taken by the
Necron Lord within the
Necron army. It is a small item containing small spider-like creatures with powerful repair capabilities. If the Necron Lord has received significant damage the creatures swarm over the Lords body, re-knitting his frame, allowing the Lord to continue the fight. The small creatures may be related to
Scarabs and/or
Tomb Spyders.
Sources
See also
