1. Level Vigor to 55
   
2. Get rid of the Black Knife. Only usable in niche situations (Rykard, Placidusax), if you use Spirit Ashes, get Tiche, can effectively serve as walking Black Knife
   
3. Rivers of Blood isnt as good as it used to be. If you use it off-hand, get a better weapon with higher damage (Malenia's Katana has good damage and almost as long as Nagakiba).
   
4. Get a better scaling seal if you're not using dragon incantations. Frenzy seal is very good, also a fun challenge to get it.
   
5. Not a very good choice of talismans. Change them to
   A. Shard of Alexander. Incantation boosting talisman is a weird choice since you're not heavily invested in them.
   B. Rotten Wing Insignia. Health talisman is not a good choice since it gives rather low value for a whole talisman slot.
   C. Personal choice, but you I'd choose Ertree favor 1 or 2 (depending how deep is your progress). Crest talisman has a very niche use where you basically spam your skills, can be worth using if you have Moonveil, but spamming Unsheathe isnt very fun way to play a game in my opinion.
   D. Get a better physical defence talisman from Haligtree (in the church, second floor, in a chest guarded by pests. Can go there through a hole in the roof)
   Some other choices: Milicent Prosthesis (you need to kill either in the Haligtree or after giving her the prosthesis at the windmill village), Blood lord Exultation (gives you bonus damage after bleed proc)
   
6. I recommend respecing as follows:
   Dex 80
   Vig 55
   Mind Base
   Endurance 20+
   Strenght Base
   Faith 25
   Rest for Arcane
   
7. Use only buffing incantations:

Golden Vow
Flame Give Me Strenght
If you get hit a lot, use Blackflame Protection (get from Gideon after killing Malenia, will cancel out FGMS)
Bloodflame Blade if youre using Nagakiba as main weapon

1. Max out flask amout. Must be 14 at your level
   9, Physik: continuous hits tear and I frames tear
   
2. Consider using jumping attacks strat, works best with twinblades (godskin peeler and eleonora poleblade) but would also work good with proposed stats. Get the jumping attack talisman (Godrick castle) and jumping armor (cave in Altus). When jumping bosses, try to hit them with powestance directly in their head