Rune of Nak'T'Graa

Dreadblade only. 5++ invulnerable save against ranged and melee attacks. In addition, the Dreadblade gains one additional pact and damnation of your choice.
•Note that this can be applied to a Dreadblade with neither a Pact nor a Damnation; aside from getting two Pacted Dreadblades into a detachment