I’d also like to add to all of the above that DRK’s “MP” is actually considered it’s pool of darkness, not magic points. In Heavensward when DRK had different mechanics it had to maintain darkside which would slowly drain their MP meter and the only way to recover it was syphon strike and carve and spit, any other form of mp recovery like refresh from BRD/MCH had no effect on DRK to specifically denote that what they were using was NOT magic.