OK... so I like the idea of a magical sword that's given to a witchfinder; I've crafted up a few different approaches:
1. IoP
2. Have an enchanted item that is given to the player, and I don't like this but it isn't w/o precedent (i.e. Warden Sword)
3. Make the witchfinder a ritual practitioner, i.e. a crafter, and have him build his witchslaying sword
4. Same as no. 3, but he can be any kind of focused practitioner, but this will at least give enchanted item slots so that he can be given a witchslaying sword
Assuming the PC has a Lore of great and is crafting his own, we came up with -
Witchslaying SwordWeapon:2 (it is a sword)
slot 1: Counterspell at Great
slot 2: +1 power to counterspell, so it is now Superb
slot 3: + two uses per session (three altogether)
slot 4: Weapon:6 for 1 attack
If it was an IoP...
Witchslaying SwordIoP +2 (Indestructible, It Is A Sword, One Time Discount)
True Aim -1 (+1 weapon when wielded against mortal magicians)
Exceptional -1 (+2 stress)
Supernatural Toughness -4
Catch: Anything that isn't mortal magic +3
Total refresh: -1
Which one seems most elegant? I am leaning towards the PC building his own... it has some neat story implications ("You must build your own lightsabre to become a true Jedi...") and puts the weight more on the PC vs "Wee, lookee what fell out of the magic well today. A mage slaying sword! w00p!"
Commentary & suggestions welcome, especially if it fixes up any rule misinterpretations or math miscalculations... thanks