Carved Bone Shield & Wounding Shurikan

[Jhoran]

Anyone willing to explain the Carved Bone Shield to me? Absorbs 20% of negative energy that otherwise would have damaged me (does this have any trade value?)

I may be looking to trade it; but have no idea of its value

Also found a +2 wounding returning shurikan which I'd never seen before if anyone wants a low damage ranged wounder. (does this have any trade value)

[Katrina]

Any 'Inflict' damage you take (I think 'Harm' as well) will be absorbed