Nachti wrote:
1. Will it be only Natural AC that doesn't transfer? What about AC from Dwarven Defender, or other forms of Class-based AC?
Dwarfen defenders get Dodge AC which results of a intensive defensive training. The dwarf keeps that knowledge/training even in another form. Same for bladesinger, duelist or any other class where this philosophy applies.
Monk AC:
A monk has a sixth sense that lets his avoid even unanticipated attacks. When unarmored, the monk adds his Wisdom bonus (if any) to his AC. In addition, a monk gains a +1 bonus to AC at 5th level. This bonus increases by 1 for every five monk levels thereafter (+2 at 10th, +3 at 15th, and +4 at 20th level). He loses these bonuses when he is immobilized or helpless, when he wears any armor, or when he carries a shield.
If that philosophy is behind the removal of Monk AC, which is literally a sixth sense born out of intensive defensive training, then I do not think those other sources of class AC should apply in the new form. I mean, I could pick a Bladesinger and have:
+6 (Improved Mage Armor),
+4 (Shield Spell),
+5 (Shadow Shield),
+2 (Cat's Grace),
+1 (Reduce Person)
+1 (Haste)
+5 (Bladesinger dodge AC),
= +24 AC on top of whatever the shape itself gets.
Now, currently, a Monk/Spirit Shaman gets:
+12 (Tortoise Shell),
+4 (Halo of Sand),
+2 (Cat's Grace),
+15~ (Monk AC with Owl's Insight),
= +33 on top of whatever else the shape gets.
The default Horned Devil has the base AC of 35, and our Bladesinger would be looking at an AC of 59+, because they could turn on Improved Combat Expertise for that +6 AC and land at AC of 65, all while having access to spells that grant 50% Concealment, Mirror Images, and what not else.
Now, if our current Monk/Spirit Shaman has spent the feats to get ICE as well, then they could easily reach the AC of 74+. It is higher than what our Bladesinger gets, but at least it doesn't have Concealment and Mirror Images on top of it, and high spell DCs when our shapeshifter returns to their original form.
I am just saying that it might make more sense 'balance' wise to make all shapes block class based AC bonuses. The excuse or design philosophy could be simply that they have not had the time to master those abilities in their temporary form.
Anyhow, just my 2 cents or what not.