GURPS Fantasy-Tech 2: Weapons of Fantasy

[PK]

It's worth noting that if you allow my Whip It Good power-ups -- http://peekitty.livejournal.com/46728.html -- in the same campaign as diabolical whips, you'll almost definitely see them become the weapon of choice for certain fighters. In particular, a Holy Warrior of Love and Fertility can be downright terrifying, especially with a few levels of Blessed (Heroic Feats).