This is part of the tome update. Each religion received one update:
Law and Imperial: Guards may only be cast in your own lands. The timer is now 20 minutes.
Tekstone: Grim Aura added, guards removed.
Nature: Elemental Protection added, guards removed.
Updates 7.2
Updates 7.2
Hear it not my lord, for it is a knell. That summons thee to heaven, or to hell.