chromatic unicorn pendant

[Akhulas]

.. this object, a chromatic unicorn pendant, is armor,
   and can be referred to as 'pendant chromatic'.
It is of 30th level, weighs 7 pounds, and is worth 152 gold.
You can wear it around your neck.
It glows with a soft light and hums faintly.
It cannot be used by those of darkened soul.
Armor class bonus: 11 vs pierce, 11 vs bash, 11 vs slash, and 8 vs magic.
When worn, it
   modifies damage roll by 3
   modifies hit roll by 3
   modifies resistance to holy by -5
   modifies negative-based spell damage by 10%

why anti-evil? who exept evils can use negative spells ?

[Proph]

better add that it's impossible to desecrate 

[Habbakuk]

Fixed already.