This build requires the Bonecharm Crafting perk, as well as all of it's upgrades. The last perk, Rune Crafting, is optional, but it can help save you time instead of looking around the missions for whale bones.

You will need the following Bonecharms and a LOT of Runes. The Bonecharms and their crafting combinations I have found the most useful are:

Spiritual Pool x4
Swift Stalker x4
Swift Shadow x4
Void Favor x4 (Only available with pre-order)
Undertaker x4
Strong Arms x4
Spiritual Sacrifice x2 / Blood Sacrifice x2
Spiritual Fortune x2 / Spirited x2
Zephyr
Fleet Fighter

With the Bonecharm Crafting perk and it's upgrades, you can sacrifice a Bonecharm and learn it's traits. After you sacrifice a Bonecharm, you can craft a new Bonecharm that can stack that specific trait up to four times, quadrupling it's efficacy.* Alternatively, if you only want to apply two of the same trait and mix other traits in, you would only double that specific trait's efficacy. If you apply a trait only once to a crafted Bonecharm, it is at it's base level efficacy.*

Extremely Important Note: Before crafting a Bonecharm with four traits, identical or otherwise, make a Quicksave (F5 by default). When crafting Bonecharms, the more traits applied to it, the higher the chance that it will Corrupt during the crafting process.* Corruption applies a negative trait to the newly crafted Bonecharm. Some negative traits are not as impactful as others, but are still an unnecessary hindrance. If your charm is corrupted, simply Quickload (F9 by default) and retry the crafting with the same traits chosen until you reach the desired result. Quicksave before you craft each Bonecharm.

*This is from my understanding.

- This build combined with NewGame+ and the maximum difficulty settings insanely fun. Previously collected Bonecharms for that specific save file (if sacrificed and the traits are learned) will carry over into NG+. You can craft all of these Bonecharms (except for Zephyr & Fleet Fighter) as soon as you gain control of Corvo/Emily in the beginning of Mission 2, even before leaving the Dreadful Wale.

- To farm Zephyr, simply follow these instructions:
1. Before you leave the Dreadful Wale to begin Edge of the World, run up to the skiff Meagan uses to take you to each mission, move close enough to the skiff that you get an interaction prompt.
2. Make a manual save (Escape -> Save Game), then interact with the skiff.
3. As Meagan drops you off at the Docks, make a quicksave, then speedrun your way to the Corrupt Bonecharm in the Overseer's Outpost (I'll make a tutorial for the fastest route someday).
a. Not Zephyr? Load the manual save you made whilst looking at the skiff for Meagan to take you to the Docks and try again (There is a 7%~ chance to get Zephyr each attempt).
b. Got Zephyr? Load the quicksave you made as soon as you stepped foot on the Docks and work your way to it however you see fit. (NOTE: When you first gain control at the Docks, sometimes your quicksave won't go through. I wait around 2-3 seconds, make the quicksave, then rush to check.)

- To farm Fleet Fighter, apply the same method as above, but replace the manual skiff save with a manual save once you are in interaction distance of the carriage that takes you to Addermire. (NOTE: If you place your character inside the carriage before interacting, it skips the animation of opening the door, entering the carriage, sitting down, then pulling the lever. If you interact while inside the carriage, the only animation you get is pulling the lever.)

- Thank you for taking the time to read this, and I hope this guide has been helpful. Dishonored II is one of my favorite games ever made, and these Bonecharms have made my experience with it all the more memorable. I hope you will adore this game as much as I do.

- I hope you're doing well. There are so many people rooting for you, and they all see the massive amounts of progress you have made in these difficult times. Take courage and comfort in knowing that better days are right around the corner. Keep that chin up and continue to fight the good fight; tomorrow wouldn't be the same without you in it.

God bless you.