This is the Legion version of Hero Damage.
If you want to see BfA simulations, you can go here.
If you want to see BfA PrePatch simulations, you can go here.

Fan of Knives Comparison

Warning! This interaction will be hotfixed with the weekly reset on Jan 9. Mutilate should again be your main generator in all Single Target situations.

With enough Mastery or Poison Knives relics, dropping Mutilate and using Fan of Knives as the main generator actually becomes an increase. If you see variations including “FoK” for Combinations or Relics, those are profiles using Fan of Knives instead of Mutilate.

To sim yourself and check whether using FoK as the main builder for Assassination is an increase, you can copy and paste this code after your /simc output. E.g. on Raidbots, open “Advanced”, insert your /simc Addon output and then, right after, the following code.

If you click on “Copy”, the input will be automatically copied to your clipboard.

With the latest Raidbots version set to “Nightly”, you can simply use: