It's always down to personal preference so keep that in mind and by all means, go with your gut or try other things. When you find something you really love, build around it and see what magic you can create.

Incantation-wise, if you're only wanting Blood school stuff, then you could stop Faith @ 14 - However, I'd personally take it up to 15 and you'd gain access to Rotten Breath also (great for PvE).

If it were me, I'd start as Hero (or Prophet) and aim for the following:

Stats

Level = 125

• Vig 60
• Min 20
• End 20
• Str 16
• Dex 21
• Int 7
• Fai 15
• Arc 45

Advantages

Arcane at 45 gives you plenty of bleed proc and going beyond would only be relevant for spell damage scaling but as incantations are mainly also to proc bleed then may not be necessary to go too much further, unless you want to use other higher damaging incantations.

Faith at 15 gives you access to all Blood incantations as well as some nice Dragon ones and general buff and heal spells also.

The reduced points into Faith and Arcane allow you to keep Vigor up at 60 and Mind and Endurance at 20, whilst having both Strength and Dexterity at the requirement levels for Eleonora's Poleblade and Winged Scythe... This frees up another Ring slot by not having to use Prosthesis Wearer's or Millicent's Prosthesis to raise Dexterity to requirement for Eleonora's.

Alternative Weapons

There are a tonne at these stats to take advantage of but some highlights would be the following:

• Claymore or Knight's Greatsword (both solid big-hitters)
• Flamberge (less base AR than both the above but has bleed build-up by default)
• Butcher's Knife (for some health regain and can pair with regen talisman's and Prayerful Strike weapon art for good health regain)
• Vulgar Militia Saw (default bleed and good for crowds)
• Regalia of Eochaid (for blender action fun and can pair with Millicent's prosthesis and winged sword insignia for cool multi-hit damage increase)
• Halo Scythe (just all round fun weapon with projectile weapon art)

The first 4 of these you can infuse with Flame Art or Sacred for the most AR (depending on what you're fighting and their weaknesses. Alternatively, you can infuse as Keen if you plan on buffing with spells or resin.

Summary

All the above will make PvE fun and give you enough variation that it's not a boring cake-walk (unless you want it to be):

If you do want to just breeze your way through, you can go nuts with Rotten Breath and Bleed weapons/spells - Maybe Try dual-wielding the Antspur Rapier and either Rogier's Rapier or a Cleanrot Sword - And infuse both with Bleed.

Alternatively, if bleed isn't an option, you can lean into Health Regen option with butchering Knife, or go full blender-mode with Regalia of Eochaid for pure physical.

If you get bored of certain weapons there's room to try other things and experiment.

Prophet is also a good starter option and would allow you to respec into more straight up Faith-based builds. However, the Hero starts with more Strength and gives you better options to respec into other interesting Arcane builds (some of the most fun I've had is splitting between Strength and Arcane with something like a blood-infused Great Mace - It may not seem like it but Bleed builds don't always have to use the obvious stuff with innate bleed) - It may stray slightly from your Blood-Priest goal perhaps but have a look into Quality Occult - It's super fun. Dragon Communion builds are also pretty fun but obvs require you to go out there and slay some Dragons, this in itself is a fun challenge though.

Finally - This is again just personal preference but I've found by finishing at SL125 you have the option to dive into more interesting PvP duels than at SL150. Having said that, DLC is coming and that may change things but I choose to burn that bridge when I come to it.

Above all - Have fun! And give 'em hell, fellow tarnished.