I'm not crazy. My mother had me tested.
Does it have to be just 1?
like let's say a villain has an attack value of 4 and i use 6 attack value to defeat it. would i be able to use excessive violence? or does it have to be only 1 above the villain's value?
Yes you would though you are not forced to spend all 6. You could just spend 5 and not use the last point.