Any mind is better hands down over any other stat. Crit is good but doesn't touch +6 mind.

For the person just above me: The gear is level i70-90 but can be equipped by your level 50 character. Level i70 gear can be crafted or purchased spending philosophy tomestones earned by completing high level dungeons. The crafted gear also requires materials only obtained using philosophy tomestones. Level i90 gear is obtained by spending mythology tombstones or from drops in The Binding Coil of Behemoth. The myth stones can only be accumulated at 300 power week.