Sword of Gabriel power for Holy Warriors
 

The holy warrior prays to the Divine and then his sword ignites with Glory and burns without smoke and radiates a golden light. All creatures struck with this sword will take an additional 3 points of damage while those of Infernal nature such as undead, evil clerics, black wizards or demons will take 8 additional points of damage. In addition they must make a Will roll or flee in terror.

Re: Sword of Gabriel power for Holy Warriors
 

I'd just crib this one from GURPS Powers: Divine Favor.


Spirit Weapon [24]
Blessed (Ghost Weapon)† [15] + Burning Attack 1 point (Accessibility, Evil supernatural beings only, -50%; Affects Insubstantial, +20%; Cyclic, 1 second, 4 cycles, +300%; Divine, -10%; Follow-Up, Any weapon, +50%) [9].

† Blessed (Ghost Weapon) is originally from Monster Hunters 1 Champions:
Any weapon you wield has the ability to harm evil spirits! In effect, it gains the Affects Insubstantial modifier, but only against undead or spirit beings (e.g., demons or ghosts). This even extends to vehicles that you drive – affecting both built-in weapons and intentional collisions! 15 points.



[EDIT]
I leave it to someone less lazy to add the Terror and Requires Activation to the mix.
[/EDIT]

Re: Sword of Gabriel power for Holy Warriors
 

I was thinking Divine Glory will harm everyone just evil ones more. Also it is cosmic in effect and can cause demons to flee .