Experience Points and Advancement

[GM Marvel]

I always went with it must be being wielded.  Whioch brings me to a quetstion I had been mulling around.Is there a way top enchant a symbiont?  Such as making her throwing scarab symbiont a +1 or +2 symbiont, or if she gets a crawling gauntlet sym,biont, to enchant it to +1?

What about adding weapon crstals?

You might be in the perfect world to add some bonuses to your Symbionts.  They remake creature with not only metal but with body parts.  If you find a body part you like on another creature, you can take it to one of these remakers and they can give it that power or ability.  So if you wanted it to have a better AC, find a scaly creature you like and add the scales to the Symbionts.  Want darkvision?  Find a creature with it, rip their eyes out and give yourself Darkvision.  As for actually enchanting, I'm not sure.  I'd have to look around or create something.