3.5 weapon ench help

[Jeno76]

Hi!

I'm looking for a weapon enchantment which is working on a critical hit and gives some bonus for me and not some penalty to the opponent.
All books allowed.

Thanks in advance

[Duke of URL]

Not exactly what you're looking for, but here's the best I could find:

Blessed (BoED) - Automatically confirms threatened crits

Specific weapon: Sword of Life Stealing (DMG) - grants you 1d6 temp HP in addition to negative level on opponent

Specific Weapon: Keryvian (PGF) - same as above, plus other abilities of weapon.