The unhallowed creature template includes the effects of the unhallow spell and its magic circle against good effect, and applies to all undead creatures in the area of effect of an unhallow spell.
Quick Rules: +2 deflection bonus to AC vs. good creatures; +2 resistance bonus on saving throws vs. good creatures; +4 profane bonus to DC to resist channeled negative energy.
Section 15: Copyright Notice – Pathfinder Adventure Path #48: Shadows of Gallowspire
Pathfinder Adventure Path #48: Shadows of Gallowspire. © 2011, Paizo Publishing, LLC; Author: Brandon Hodge.