the missing secret sauce is stat investment you need ot invest in combat to make the false god slayer viable both combat and constitution
Viewing post in How on earth do you use the false god slayer unironically?
Just level up some COM and CON stats won't help you so much if you don't really know how to play with False God Slayer because you need to know which wide/roll/stab sword swing to use and know the moment when you can parry and counterattack or you will be left without HP and Food all the time and getting leg injuries is quite problematic because the Great Sword itself slows down your movement.