Substantially "Lost" in Function as Partying Thaumaturge

[Rentahamster]

Why would you ever use Second Wind on a mage if you have to be active mode to get tp in order to use it.
It's never worth being in active mode as a mage since it cancels your mp regen.

It's useful for long boss fights, such as Ifrit. As long as you are engaged in combat with an enemy, you can be in passive mode and not lose TP. That is how you can build up 3k TP at the start of the Ifrit fight, then use that for Second Wind for the rest of the fight.