Bard Points Allocation - Isn;t it DEX?

[Menae]

BLM does not use DEX - that is why you do not see a damage increase. BLM damage comes from your INT stat - that is where BLM potency lies. The only classes in the game that can benefit from DEX are ROG/NIN, ARC/BRD and PUG/MNK.

Monks use STR, actually. Not DEX.

And tanks actually gain a really small amount of Block/Parry from DEX. I stress the word small, though.