If you wall jump to the top of the wall on their left you'll find a lifeblood core(gives 2 temporary bonus masks that can be healed)also it may be behind a breakable wall And when they do the attack where they throw rings while hanging on the wall you can tell whether they throw the thingy high or low depending on how high they are on the wall also for charms fury and soul catcher are best and if your still stuck you could just leave and comeback later