Weapon Enchant ideas

[DragonKnight]

Hey there, I'm running a friend of mine through a solo game. They are playing a dual wielding rogue and didn't request an enchant on their offhand, leaving it up to me to give them something interesting. I like the idea and have been going through several books (they aren't getting it right away as a boss will probably have it on them, so no rush on this, I just like to plan ahead).

I want to give them something fun, and not be boring and just slap an energy enchant on the weapon. If anyone has an interesting/fun weapon enchant let me know, it can be by the books or homebrewed. And again, it's a solo game, so a little overpowered-ness is fine.

[sonofzeal]

One of my favorites for +1 is Impaling. Up to 3/day, treat a melee attack as a touch attack. Useful, but the /day limit keeps it from being overpowered.

[Greenish]

Smoking (Lords of Darkness) is pretty neat.

[Godskook]

Let's see:

Deadly precision(more sneak attack is always welcome)
Eager(Lots of initiative and surprise round bonuses)
Warning(sizeable initiative bonus)
Keen(crits are always useful)
Spell storing(open-ended usefulness, yay!)
Vicious(backlash damage makes it interesting! (http://www.youtube.com/watch?v=1PBmWwd37Q8))

[Greenish]

Spectral Dagger from MIC is pretty handy for a sneak attacker.