Fuel for the Flames (Or, Polymorph and Hit Points)

[youspoonybard]

"Unlike a regular trap the soul spell, the victim's body remains behind as a mindless automaton. So long as a soulless body remains in range of the spell, a demon can occupy the body. The effect is similar to a magic jar spell, except that the soulless body gets no save. The demon occupying the body retains its own supernatural and spell-like abilities, its base attack bonus and base saving throws, which are modified by the new bodies' physical ability scores (Strength, Dexterity, and Constitution). The demon retains its own mentality and mental ability scores (Intelligence, Wisdom, and Charisma), and its own Hit Dice (though the body's Constitution score determines its hit points). The demon has the physical qualities of stolen body; these include natural size, mundane movement capabilities (such as burrowing, climbing, walking, swimming, and flight with wings, to a maximum speed of 120 feet for flying or 60 feet for nonflying movement), natural armor bonus, natural weapons (such as claws, bite, and so on), racial skill bonuses, racial bonus feats, and any gross physical qualities (presence or absence of wings, number of extremities, and so forth). They cannot depart the body except at the ritual site, where the demon can return to the Abyss. The demon can also return physically to the Abyss via magical means. If killed while within the stolen body, the demon dies."

Taken from:
http://www.wizards.com/default.asp?x=dnd/re/20040322a

Sure, it's not Polymorph, but it looks a lot like it...

 

[Hypersmurf]

Sure, it's not Polymorph, but it looks a lot like it...

Looks fine to me.

If the demon has 10 hit dice and 14 Con, and 65 hit points, and he possesses a body with 16 Con, his hit points go up to 75. If he then Polymorphs that body into something with a Con of 20, his hit points don't change, since a Con change due to Polymorph doesn't affect hit points.

-Hyp.