Due to these new techniques, the group realized that their plans might differ after they understood a bit of them.
Jay learned a better way of utilizing the muscles on his arms, which improved his swing's strength significantly. He never thought that the Minotaur's Swing would be that effective.
The same applied to Ragna. He had been training with Jay, getting used to blocking a very powerful attack like what Jay used. The Dwarven's shielding technique increased his blocking strength drastically. He could become bolder in his role with this kind of technique.
Kanaria and Melody were the same. As their pathmaker, Melody should understand the way they conducted the battle. That was why the leadership book was very important. It was similar to a strategy game for her, but it also took a lot of trial and error to understand the battlefield, which caused Kanaria to get the Eagle Vision.