Stoneskin

[Simaril]

I do this.

Though mostly, keep it on everyone. Tank tends to lose theirs fast of course, so I just recast before the next group. Or for bosses like Tonberry King, throw one out during battle before a bit hit.

If I had infinite mana I would recast stoneskin on the tank anytime everyone's HP are full. But as I'm learning battles I'm afraid to waste the MP.

For example, I'll be doing Titan (level 34) for the first time, and know it's valuable to cast a certain times, but afraid to waste mana going for maximum uptime :/