Homebrew Liquid Blade Feats

[Leviticus Blue]

I apologize in advance. I would have made this post prettier with formatting, but it was written by phone.

Liquid Blade! Only just discovered this beautiful alchemical item and I have quickly fallen in love (as have many others I gathered). The item itself has become the inspiration for a character I plan to play ASAP: a Tiefling Assassin who uses the disposable and hard-to-trace Liquid Blade as his weapon of choice.

The character's mostly built, with just a few feats remaining to be picked. The group I play with is pretty good about homebrew, so I figured making some new feats for the Liquid Blade would be acceptable. Below are my suggested feats (written without flair).

Liquid Blade Blanch
Prerequisite: Craft (Alchemy) 3 ranks
You can mix weapon blanch with Liquid Blade to produce a liquid blade that overcomes the appropriate damage reductions. Treat the liquid blade as a masterwork weapon when used this way. Can be used in conjunction with poisons. The liquid blade still evaporates after ten minutes.

Superior Liquid Blade
Prerequisite: Craft (Alchemy) 5 ranks
You can increase the DC by 4 and the price by 200gp to create a +1 liquid blade when using the Liquid Blade vial. This increases incrementally for each additional +1 and the liquid blade still evaporates after ten minutes.

Liquid Blade Infusion
Prerequisite: Craft (Alchemy) 7 ranks
Poison applied to Liquid Blade during creation lasts until the blade evaporates.

Liquid Blade Bane
Prerequisite: Craft (Alchemy) 9 ranks
By increasing the DC by 15 and the price by 900gp, you can craft a liquid blade that has the same effect as a slaying arrow. The blade can only be used once before evaporating.

I actually wrote those prices without refreshing my memory on the item's cost, so they may be bunk. I'm more concerned with the general balance issue. Do these need tweaking? Buffing, nerfing? Better yet, do YOU have any super-cool ideas?

[Leviticus Blue]

Shameless self-bump

Now that I am home, I realize there is a Homebrew board for this very reason. Apologies.

[Redjack_rose]

Though fairly new to pathfinder, I thought I'd chime in.

Making/adding rules is a difficult, difficult thing to do (depending on your players of course). An alteration here or there, and a dedicated maximizer can easily outshine the rest of your party, possibly making things very unfun. If given the chance to homebrew my own liquid blade user... I'd totally abuse it >.<

That being said (and saying just that I try to stay away from making new rules/abilities);

I'd consider clarify/adding liquid blades to the quick draw feat, allow their use in spring loaded wrist sheaths, and/or treat them (even unactivated)as weapons.

(I also liked the pre-blanching idea, though I would only allow it to be used with poison if a regular weapon can be both poisoned and blanched normaly (I'm not sure)

The other thing to consider is looking into/adapting the Equipment Trick Feats, specifically look at those available for the sunrod (a very similar item).