The bite in full attack needs to match the attack line 1d12+6.
I'd actually say CR 4, since I think it's better than the CR 3 animated object (but not as good as the CR 5 one).
The rest is good.
Done then?
2HD Small animal with barbed defense. Con sounds ok, probably Str too. Any other thoughts? Pretty high natural AC, I guess.
The bite of a Wixwaxia should probably be pretty weak--they didn't have much to speak of in the way of jaws. Barbed defense is the way to go, with maybe a little DR/- or DR/bludgeoning if you feel comfortable giving that to vermin.
Hi, by the way.
Demiurge out.
2HD Small animal with barbed defense. Con sounds ok, probably Str too. Any other thoughts? Pretty high natural AC, I guess.
The bite of a Wixwaxia should probably be pretty weak--they didn't have much to speak of in the way of jaws. Barbed defense is the way to go, with maybe a little DR/- or DR/bludgeoning if you feel comfortable giving that to vermin.
Wiwaxia probably crawled along like a spiky snail, so its Dexterity is likely to be low too. Maybe Dex 4-7 or so? That suggests a +9 or +10 NA to get the equivalent Armour Class (AC 18).
Yes, I'm guessing we'll have it use a spike for its attack rather than its mouth.