Creo Aquam looks all alone up there.
Envenomed Sword
CrAq 15
R: Touch, D: Mom T:Ind
The first time this enchanted sword stabs a creature each day it ejects a corrosive liquid on to the target doing +10 damage to it (damage and soak are calculated separately from the weapon damage). It is not particularly unlikely that this liquid will also end up on the sword, damaging it. It is not common for sword enchanted in this fashion to last more than three activations before being too damaged to function as enchanted device (and not work particularly well as swords either). This item was first developed in a covenant where the frequency of violence was low enough that the sword's self destructing nature was not especially important, they did not expect to be in armed conflict more than two or three times in their lives. The laboratory text for this device uses the +4 shape bonus from swords for harming humans and animals.
(base 10 +1 touch)
The guideline for this effect reads as follows "Create a corrosive substance doing +(Level) damage. Increasing the range to more than Touch is a very good idea." I'm wondering if duration momentary is sufficient. Might the corrosive substance be gone before it has a chance to actually corrode anything?