that durendal write up is pretty sweet! would you mind posting the cost for it's individual abilities? I know holy is a -1 but other than that i figure it's better to try and get it from the source before i try and come up with my own lol
Well, I mostly eyeballed it but here's how I broke it down in my head and on paper. I've found that with unique Items of Power you really just have to go with your gut.
Armor of Faith. -2. Armor 2 is equal to 4 shifts of effect and a single stunt can give you 2 shifts of effect against a narrowly defined subset. I felt that supernaturally evil creatures was sufficiently narrow (as it really only works against Ghouls, Vampires, and Denarians). When I was making the weapon I saw this as equivalent to a +1 to attack.
Divine Purpose. I count this as a +1 rebate for the weapon, as it's very clearly a restriction.
Hidden from the Unworthy. -1 and pretty solid for that cost. This was also added more for flavor than for potency. I wanted a reason to explain why it hadn't been used much at all.
Holy. -1, as you said above.
Lay Low the Wicked. -2 and well worth it at this cost. I figured that being able to temporarily counter one power was roughly equal in power to Channeling, with a fate point expenditure taking the place of stress.
It’s a Sword - No cost, of course. The item has to be something, after all.
Unbreakable - Also no cost, as all items of power come with this by default.