brehobit said:
I don't have a problem with the crystals per se, but I do have a problem with the pricing.
Get the most useful part of the endurance feat for 500GP? Yes, it is a weak feat, but _that_ weak? My initial reaction would be 2500-5000.
Yes, Endurance is that weak. Quite frankly, Endurance is a really, really bad feat. The cost of taking it is rarely worth it except for fighters... and they are wearing heavy armour so it doesn't work for them.
The crystal is actually more useful than the Endurance feat, by far.
It applies to heavy armour.

The primary effect of it is to remove the penalty for playing a character in heavy armour who has to sleep sometime (making heavy armour more attractive than light).
I'm unsure of the crystal's effect on the game, however.
Ghost touch, +1d6 damage vs undead and the ability to crit/sneak attack undead for 10,000 GP? In discussions here, the general sense was that the _last_ one was worth more than that by quite a bit.
But is it? Pricing is an unusual game, especially when you look at the cost of using an ability.
The cost in this case is...
* Have a +3 or better weapon
* Spend two move actions to replace the existing crystal with the new crystal
* Spend 10,000 gp on the crystal
Now, in an undead-dominated dungeon, the second cost isn't applicable, but many dungeons have just a couple of undead amongst many other monsters.
Pricing just seems _way_ off. I'll write it off to "power creep to sell books", but hey, I'm cynical.
The trouble derives from what you compare the pricing
to.
Cheers!