Since we proved that the AMR simulator matches logs from top players on Krosus, I decided to do a full guide so you can test out situations for your own character.
The guide also includes 6 custom modifications for the Krosus boss script including:
- Extra movement on Fel Beams
- Always (or never) getting targeted by Orb of Destruction
- Special scenarios for melee
Also, for reference, here is the explanation of how the default Krosus script is setup.