The battle against Ishida is quite demanding, due to the opponent's speed of attack. At the very beginning, when he changes, he performs an uncontrollable energy burst, which you can either block or dodge. It is a good idea to have the amulet of idleness on you, thanks to which you will be able to slow your opponent down a little. Just like in the case of Shima Sakon, the battle has been divided into two alternating stages, when Ishida summons his guardian spirit. This is when his attacks become stronger. The most effective way to defeat this boss is to keep to his left side. At the moment, at which he launches an attack, dodge and deal damage to the "tail". This way, you will deal the most damage. When you have the amulet of idleness, use it at the moment, at which Ishida transforms, thanks to which you slow down his attacks while he is using his guardian spirit. Thanks to which, you also avoid his jump in your direction. Apart from the amulet, you should also take along lots of healing items.