Fate is a retarded setting where they constantly make specific statements of exactly how something works or exactly how relatively strong things are and then just do the opposite.
Like, if they have two guys fight and one guy is massively weaker than the other then usually the weaker person will win by virtue of the series obsession with subversion
If someone has the power of "whenever I attack, X will always happen" then they will attack and X will not happen. If someone has the power of being unbeatable absolute best swordsman, they will lose in a swordfight. Shits retarded.