The Must have Faith (and other things) in - stuff, is AND
As well
Not OR, like Only useable by CLASS etc
Only useable by Barbarian
Only useable by Chaotic Evil
Means, any barbarian
Or
Any chaotic evil
Can use it.
If it has
Only useable with faith in GOD
Only useable by Barbarian
Only useable by Chaotic evil
Then, ONLY someone with faith in that god
AND
Barbarian OR chaotic evil
Can use it.