Why do you save your LB?

[kukurumei]

Tank I pretty much never get to use.

Tank LB is useful in ex primals (and of course ultima). Since it's the only instant LB you have. Meaning you can time it to within a few seconds.

Garuda EX for instance if the spiny is dead, a lvl2 or even lvl1 Tank LB can prevent a wipe. Same for Titan, if you time it just right, you can do certain things.

Healer is probably the weakest LB of all, but attack LB is pretty worthless if you have dead people. The damage reduction of a dead members make is pretty worthless.

If you have more then 2 people dead, attack LB is nearly the same as not using at all, unless you have a specific purposes (meteor adds, or precast)