Arcane Mage’s primary top priority stat should be mastery, shouldnt it?
AMR runs haste as top which is the lowest priority on all other guides
Our default gearing strategies are based off one talent/legendary/set bonus setup right now, we’re working on adding more. It is possible that other guides are assuming a different setup.
The gearing strategy we made will get the highest simulated DPS for the situation it was created for. I think our default had the mystic kilt on, which would make mastery less valuable.
You should try running a custom gearing strategy for your current gear in the meantime while we fill out more defaults for different gear setups.