I once again recommend Khazan with the caviate that this will become more difficult than any souls like anf the hump is long but it's worth getting through it. Also, spread your stat points out instead of knocking everything into health and your primary scaling, stanima regen is a must even if you don't use the duel blades as is strength to be able to equip a full set at grade B, you can get a lot of stanima regen on gear also by changing attributes as well as other stats like extra stanima if you don't have the points to level Endurance. The attack damage is so much less important cause if you can't keep attacks up and have to wait, that balances out anyway but more time with the boss means more chip damage while you're waiting for stanima regen.
Shactuka is the first time I beat a boss in Khazan without trying more than two dozen times at least, got him on my second try and nearly on my first.
It's not that the game is hard, it's that the systems don't open up early enough as well as mechanics like altering gear stats and crafting full sets for the bonuses, the game has opened up and feels like Nioh 2 now. Now that there's plenty of unlocks from the skill tree with combo skills, passives and special skills, there's rage mode and I have enough stats to equip a full set and make a build work the games difficulty is drastically reduced and it didn't hurt that I redone my stats to be balanced out between most things like Stanima recovery and Strength for equip load instead of straight vitality and main weapon scaling stat, I could increase my attack damage but I think putting points into endurance and having all stats up would be more benificial. The below video is on easy but I've changed back to normal since cause I feel OP now. Game is fun as hell despite its flaws.
This fight felt more like Stellar Blade than the same Khazan I was playing the day before yesterday. A real pity they didn't get the game rolling sooner. Allowing for more skill points and unlocks earlier would improve this game so much cause I'm sure Viper and Volbaino filtered many people and if not Maluca definitely did.








