This is the 1.18 warrior DPS simulator: https://jrc13245.github.io/WarriorSim-T ... urtle.html
Note: I did not make this, I do not maintain it. I am not a coder. I have contributed like 1 or 2 items to the sim years ago but it was a headache for me to do it. if something is broken, I cannot fix it.
It runs in your browser, and is NOT ENTIRELY ACCURATE but a good ballpark. If the simulations are slow reduce the number of simulations, as it is all locally processed. IF YOU SET IT TOO HIGH YOU CAN LAG YOUR PC OUT. You can also run simulations as a batch of 1 with the console open (f12) to see the details of the rotation and what it's doing - useful for checking if you messed up a setting or if some part of the sim just is bugged or doesn't replicate that interaction properly. Slam is notoriously less accurate than fury in it.
Also be aware that the links to buffs/items do not work, but that will not impact the functionality of the sim itself. The code is forkable if you have the skills/desire to do so for octo specifcally and if you do I can update this post with such a link.
For historical purposes and in case someone needs it for a different fork due to something being broken in the above one's code, these are the older versions of the simulator:
hxxps://zebouski.github.io/WarriorSim-TurtleWoW/turtle.html
hxxps://thrunk112.github.io/WarriorSim-TurtleWoW/turtle.html