Crystal tower's ppl is so random with their approach to spiking their own dmg that I have found that in most cases there is no real reason to do foe pluss voice, only if i have have it at the end of boss encounter. But healers on other hand can have that one moment where there is huge drain on their mp or one of them dies so keepingn voice for those instances is much more effective.

And we are primarily a dps class so i hate every single idiot who thinks a bard is a support class in essence. People play however they want to play and however they feel they should play, and they are entitled to. DF is random and there is no assigned class requirment excecpt strict roles - to recover hp, to keep enemies attention and be a dmg sponge, to deal the most dmg. Thats is what i expect from DF matchup, to be in your assigned role - to tank, to heal, to dps, anything other is just a nice bonus.