The designers have missed an excellent opportunity to have a very good game by missing a glaring weakness.
They really need to change how utterly random this game is when it comes to skill level progression. For example, all games start at an easy level and then slowly become more difficult as you progress but not this game. No matter how good you get the archers you oppose will still kill you instantly for no reason at all.
Instead you should be able to progress in stages along with your skill level. It makes the game so frustrating