Ok. I played around triing to create a shape-shifter.
So i managed to create 5 forms (sea-serpent, bear, tiger, wolf and hawk) by a permanent summon & kill caster mechanism. And I think it could be realy fun. If you shape to a bear in ocean, the bear will automaticly be transported to closest land target. If you shape to an hawk you automaticly get transported to the nearest legal point a hawk can be, which is in one of your cities. It in many ways mimic an 'escape' spell.
If you wildshape AFTER a battle, you get completely healed!
I think that is a fun effect and I would keep it.
But the hard part: experience:
I created a promotion fiendish (blitz, +25%, 50% fire protection, 100% holy wounderability) which gave the fiendish promotion to its summon.
And it worked, but only the first time I wildshaped. So when I was 'fiendish bear' I transformed into a 'fiendish wolf' but then if I dont remember incorrectly I transformed into a regular tiger. I'll check this later also.
Also as somebody notified me, when wildshaping my XP drops to zero which means it could theoreticaly get a promotion every 2xp. So what I could do
is make a three, where I need
Shapeshifter
Combat I
Combat II
Fiendish (requiers shapeshifter & combat II)
Where you will loose combat I and combat II if you wildhspae, but if you get fiendish you get to keep that promotion. In that way you will need to stay same shape untill level III before getting permanent promotions.
Question: Promotion requierments: I see an OR implemented, but does there exist AND requierments? Ie, requiers shapeshifter & combat II?
Maybe I'll make fiendish promotion given as spell which requieres the fiendish/celestial promotion, cuz then I could give evil civilizations fiendish and the good celestial promotion.