Giving longer darkvision ability to Yochlol

[Shin Okada]

Yochlol demon tend to take a shape of female drow. But Yochlol's darkvision is 60 feet, much shorter than that of usual drow. I found it is inconvenient for them to act as spies.

Aside from Deeper Darkvision and Dragonsight spells (both of them are in Spell Compendium) what can give them longer darkvision?

 

[Grogg of the North]

There are a handful of prestige classes that give darkvision or extend your existing darkvision. Dark Hunter and Pale Master leap to mind but I don't know if those work with what you want.

 

[Shin Okada]

There are a handful of prestige classes that give darkvision or extend your existing darkvision. Dark Hunter and Pale Master leap to mind but I don't know if those work with what you want.

Dark Hunter will do as it extends by 30 feet twice. 60 + 30 + 30 =120 feet. As I am planning to use some Yochlols as assassins, the class works very well.

 

[Grogg of the North]

Dark Hunter will also give you a death attack!