I mean, I see no need for drain to me "meaningful" outside of soloing with your chocobo for an extra blip if you need it. The point of the role system is to be situational and take what you need when you need it, and it feels like it works just fine, albeit not very strong.
Wouldn't be surprised if we see a use for break in the next tier with heavy on a mob. Erase definitely needs looked at, though (and crutch, but that's melee).
