/rest <Can I have it?> <Do you need it?>

[Estellios]

We can now cast while in passive.

What they mean is while in passive doing NOTHING and standing still you'll regain MP/HP.
but if you're in passive and cast a spell you'll spot regaining HP/MP until you're done casting.

regardless of other PT members in a fight.

No you won't recover HP/MP while incurring enmity, so if you have any hate at all you won't be recovering anything at all. I still like it better this way even for lowmanning. A challenge is a challenge and lowmanning is meant to be more difficult. If you're lowmanning chances are you won't even have time to rest MP anyways.