[Rabek]

I poked a few pages into the forums, but I didn't know what keywords to use to search for this. Apologies if a thread already exists. Please point me to it if it does.

How would one go about creating a custom item in GURPS rules?

Say, for example, you wanted a sword that could, with the flip of a switch, light on fire for burning damage, or let out a poison for corrosive damage, or whatever. How would you build that?

The key point is that it's tied to the sword, and the sword has multiple powers. So I assume striker/innate attack/etc wouldn't be purchased for the owning character.

Note that I'm interested in utilizing RAW. No house rules or anything, if possible.