Talk:Blindness/@comment-2.10.128.52-20181017130331

The beauty of the spell is indeed the reduced range of vision for enemies, they can only perceive you if you're right next to them. (Possibly, a spear allows you to reach them without them being able to understand what's happening)

However, the game description is lying. Blindness does not give -4 Thac0 penalty, but -10. I don't think it gives an AC penalty though, but that needs to be double checked.