Thoughts on a symbiote summoner?

[toxin]

I know summoners have been discussed before, but thought I'd ask for some advice.
Starting up a new game, not sure on the level, but I was thinking of a synthesis summoner (original... I know[sarcasm]). DM allowed all books, no 3rd party or 3.5, and it's usually low magic.
The advice I am looking for is on how to design my character. I want to fashion him off the Spiderman symbiote Carnage and am not quite sure what evolutions or feats to take.
I know it'll be a biped and I might throw in tentacles. Any advice or help would be much appreciated.

[Bertious]

Style wise i'd probably go for +2 Str and reach on the claws at level 1 you can describe the reach claws in the right style for Carnage. My first feat would be combat reflexes (always able to make AoO seems rather spidey sense like to me. :D

[Dragonamedrake]

Well here are his abilities as stated by Wiki...

enhanced physical strength
shape-shifting abilities
project a web-like substance from any part of his body including the formation of weapons
plant thoughts into a person's head using a symbiote tendril
ability to cling to virtually any surface
spider-sense (ability to "see" in any direction),
rapidly crawl, walk, or run across even slick surfaces
able to rapidly regenerate damaged
immune to the effects of all diseases
vulnerable to sound and heat
can launch parts of his symbiote at enemies in the form of solid weapons such as darts, spears, knives, axes, etc
warp his appendages into different arms, legs, and even wings.
full control over the size, shape, color (usually red and black), texture, and hardness of his symbiote (and any part thereof).
can make his symbiote look like normal clothing or act as "camouflage", blending him into the surrounding environment
able to grow wings at will, giving it the ability of flight

So these are the abilities that match that somewhat

Biped (Free Evolutions claws, limbs (arms), limbs (legs))
Bite
Climb
Imp Natural Armor
Ability Increase (Str)
Flight
Poison
Rend
Shadow Form
Blindsense
Blindsight
Weapon Training
Damage Reduction
See in Darkness
Web
Fast Healing

[toxin]

THANK YOU! this is helping me out greatly. I'll start building with these recommendations. Again, thanks. I'll be getting up what I decide with when I get it.

[xDemoquinx]

Where do you get shadow form?

[xDemoquinx]

Is there a way to get shadowform without being a Fetch?