Mildly interesting thing about the fighter proving grounds.
Last time around I bought this shitty book from the shop just because i noticed it was the only skill there that was impossible to get by any other means (fighters don't learn it naturally, no one has it as an inherit). This time around it's gone from the shop entirely.
Makes me wonder if it was another case of drecom fucking up and forgetting to delete the data for a skill that got cut earlier in development, like with advanced sneak attack. But this time they just let it be once they realized because no one's gonna care about a few points of DEF anyway.
At the end of the day the skill itself is almost worthless, but still kind of cool if it ends up being the rarest one in the game