Originally Posted by
KisaiTenshi
Gather one group and kill them quickly by everyone DPS'ing
or
Gather two groups, and having DPS burn them down, while Healing the damage to the tank.
What changed with StormBlood is that the developers changed the trash mob pattern so you get ambushed, thus the "drag two groups of mobs together" technique is a guaranteed wipe if you don't know where the ambush is.
Thus as a healer, you might burn more MP trying to recover from a tank that poorly timed their CD's (which guess what, are just long enough so you can't use them twice during trash mobs) , or as a tank, you might have to resort to self-healing if the healer is too busy DPS'ing.
With the raids and trials, there is a specific choreography that works individually for them, and they do NOT go any faster regardless of how much DPS you do. They are dependent on simply not making unrecoverable mistakes. So it's better for the healer to save their MP for healing if it's going slowly, because burning that MP on DPS is not going to speed it up.