Limit Break [please learn when to use it or tell others when to]

[Ri_ri]

Theres no point "saving" it if a wipe is imminent since LB bars gets reset upon death, asking you to use the LB is a last ditch effort to burst down the boss before they wipe...

If you start the encounter with it empty, it won't fill fast enough to easily dispatch the bees. But if you don't use it, it'll stay full on your next try.