Gods do not have a monopoly on the energy generated by the faith of sentiant beings. Many 'Holy' or unholy relics come into being not from the direct intervention of the divine, but through the sincere belief of the masses. If enough followers can be convinced of the power of an item, then this faith will help make this a self-fufilling prophesy. Obviously this type of energy source is generally beyond the reach of normal PCs', but kings, high preists, and even demons could make use of this to create and power items.
My only concern is the with absolutes - the curse is 100% unremovable, etc. Don't agree with those, but I can easily change that :) However, if the curse was removed, the benefits would go too, possibly causing the adventurers to revert to their true age.
This and a few other posts have me wondering what the speed and endurance of armoured horses are. I like the image this post presents, and the effect of having chariot-loads of dwarves dropped en mass though I can't help but think of this for short-range, shock engagements. Go to Comment
Arune Spheres are hollow, blue reflective metallic spheres about 25 cm/ 10" in diameter (though some are larger). They are made of a thickish glass mirrored on the inside. When magical energies are flowed through the sphere, it produces a haunting tone, which can be varied by the type, intensity, and harmonics of energies passed through it. (It sounds like an electronic organ.) If multiple energy flows are generated, multiple sounds can be generated, some of which sound like mundane instruments. Masters of The Craft can replicate almost any sound in their memory with one. Though originally used as a training tools for those with The Power, it has been adapted to be a musical instrument. All it takes is someone with patience, medative training, and a touch of the Power, to use it. (Thus becoming the favorite instrument of anyone who was tested to the first level of the Craft, but failed to advance).