
Drejk |

IIRC designers said that their intent was that Improved Natural Armor evolution does not stack with Improved Natural Armor feat but it would require a lot of searching. Let's add the question to FAQ together with request to confirm if Improved Damage evolution does not stack with Improved Natural Attack feat.

Vertexx69 |

That 2nd part doesn't make any sense. Improved damage totally stacks with improved natural attack. There is no rule that says your natural attack damage can only be increased by one size category. There IS however a rule that specifically states that natural armor bonuses from different sources don't stack. Which is why the wording of the Improved Natural Armor evolution is wrong in two ways as printed. As it is worded in the book no eidolon can EVER take it since natural armor bonuses don't stack, and all the base eidolon forms start with a +2 Natural armor. It needs to be written this way:
An eidolon’s hide grows thick fur, rigid scales, or bony plates, improving the eidolon's existing natural armor by +2. This evolution can be taken one additional time for every five levels the summoner possesses."
Then there would be no misunderstandings.