Grandmastery comes from dedicating your life to a weapon. Blades are Bards. They dedicate their lives to art, song, fine wines, good cheeses, musical scores, acting, far to many things to be learning about to spend all their time learning swordplay. Besides. Blades don't need Grandmastery. Not by a longshot. If you are having a problem with THAC0, it's either because you are young, or, if you are advanced enough in levels, you are doing something wrong and playing your Blade stupidly. With things like Mislead, you don't need GM. Or Tensors. Tensors gives Blades better THAC0 then most Fighter types.
If you feel the need to cheat, just stick to things like Kensai-Mages or something, Blades take skill and brains to play, not brute force. If you can't play a Blade on his own terms, you will never improve your skill and make your self a better player.
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