Looking at Form of the Dragon, both in the context of using it myself, but also from the perspective of my Polymorphamory guide. And from the way that it mostly dictates what you get, but doesn't quite fill in all the details, a few questions occur.
1) To what extent do you get the dragon's special rules on its natural attacks? Given the spell doesn't mention Reach, you obviously get the base reach of the dragon size you become. But do you also get the extra five feet reach on the bite attack? Similarly, do you get the dragon's special bonus of 1.5 times Strength on bite.
My instinct is yes, definitely on the reach, as it's a fairly basic part of the creature type, and you've taken that form. And probably on the extra damage, as it is part of the form.
2) When you hit Form of the Dragon 3, what range is your Frightful Presence active at? The default for the ability, 30, or the distance of the Dragon you're pretending to be? The latter option is quite variable, given that the stronger dragons hit Huge as early as Age Category 5 (young adult), and the weaker are still huge at 11 (wyrm). So, a difference of 150 feet to 330. It means you need to specify what age category as well as what size.
Again, though, I lean towards the spell giving that longer range, because all the other polymorph stuff is 'if you get an ability, you get what the creature gets, unless the polymorph spell specifies a lower form of that ability, at which point you get that. Also, it's a level 8 spell, I don't think the capability is overpowered there.
Those are my thoughts, but what do others think?
