I've been looking over the Core book and Beastiary for some clarification on what protections an Imp familiar would have when beast shaped. I have a couple of questions and would appreciate anyone who takes the time to let me know their thoughts on them.
The rules on page 212 of the core books says that you lose Ex and Su abilities that depend on your original form (keen senses, scent, and darkvision) and any class features that depend upon form.
Question 1
Would the imp retain its DR 5/good or silver, Immunity to fire and poison, and Resistance to acid 10 and cold when it shape changed into one of its animal forms?
Question 2
Do improved familiars still get the bonuses listed on the regular familiar listed on Page 84 of the Core book? Specifically things like Improved Evasion, Empathic Link, etc..
Question 3
When under the effects of the shape-change, and using the animals natural attacks can an Imp still overcome DR on applicable creatures due to its lawful and evil subtypes.
Questions 4 and 5
Does the imp keep its natural AC bonus when it shape-changes? Does its AC change only if its Dex changes due to a size change?
Just want to be rules-ready for the next game session. Thanks for any feedback.