I want to make a spell that leaves the target unit with only 100 sight range (yes, its called blind). I know about the Item Sight Range ability, but the problem is that is has to reduce the vision of different units by different numbers (and there is also night/day). The only idea I though of is to make a lot of variations of the Sight Range Bonus ability for every different unit, but that will take a lot of time so I must be sure that there is no other way to do it. So if anyone knows how to change a unit's sight range to a fixed number or has some other idea, please let me know.