What I want to do is make it so that you cannot target allied units until they reach a certain life percentage (so you could deny them). I was told that Validators can do that, but I have no idea how I would apply this to a weapon or what exactly would be used after having been fiddling with it for a few days. However, none of the wikis and tutorials I have found seem to cover this. Wish I could just create a new filter or something.

Since you can validate almost every effect that weapons use, they decided not to put any validator fields on weapons. Just validate the effect of each weapon.

Fixed, thanks.