Ironically, what he mentions as one of his favorite wishes, is one of my worst nightmares. Advantage through equipment prepared beforehand to specifically counter the opponent.
I love fair conditions in every circumstance so that you can beat the craziest odds, and all based on your own skill and ingenuity.
I believe the advantage must come from a) skill and yes, b) "preparation". But the kind of preparation you do when you fine-tune your character towards your personal play-style, not by picking a weapon that was specifically made to annihilate the type of opponent you are going to face, like it is done in real warfare.