I see a lot of people bringing up Dark Knight from FF:Tactics and saying it only had drains, but not mentioning the remake of the game on the PSP FF:Tactics War of Lions....
You know the remake where they renamed the old dark knight, I forgot his name, to a Fell Sword and made DRK a job which anybody could attain.

The job where you sacrificed a ton of HP to decimate your enemies (i.e Unholy Sacrifice and Abyssal Blade.)
If you guys are going to try to reference one game, you probably should use its most recent version.

http://finalfantasy.wikia.com/wiki/D..._%28Tactics%29

PS: Is it safe to use XI as an example seeing how that game lacks any kind of balancing especially the jobs.