Benefic I heals 500 potency for 400 MP, at 1.25 potency per MP.

Benefic II heals 800 potency for 700 MP, at 1.14 potency per MP.

Benefic I also has a small chance of making your next Benefic II heal for critical potency.

But... why?

In a lot of lategame content, Benefic I just doesn't cut it anymore.

An AST with their full kit is basically a walking panic button, and pretty much every part of their build works into that. Draw Lady of Crowns, put down Earthly Star, set up Horoscope, Opposition... That's 1620+ potency in instant-cast panic button that will all recharge in a minute or less, on top of the regen you'll be giving by literally just existing as AST, not even accounting for Intersection, Macrocosmos, and Collective Unconscious, all also instant-cast.

This is AOE stuff that you just do during your support rotation.

And in the very rare cases that I do need to focus on the tank who is getting burned, tell me why I would ever, in any case, use Benefic I over Benefic II, even with the 15% chance of a free crit, when I need heals right now? I'm not going to pre-Benefic I just for the 15 second timer to run out, and I'm not going to be spamming it randomly just for the off-chance when I have cards to draw...

Also, Astrodyne is a thing.

The MP recovery from Astrodyne is absolutely insane. I can spam Benefic II for an entire dungeon, and as long as I keep up on my cards I will never run out of MP.

There is no reason for Benefic I to even exist at this point.