Originally Posted by
FossilFree
If we ignore magic damage types, they still have some unique stuff. Chain spells like chain heal and chain lightning are unique to the class, so is a persistent knockdown aoe with earthquake. Totems are also unique, serving as almost a turret "pet." Enhancement has maelstrom weapon, though I agree enhancement is a bit lacking atm. They should return to a focus on changing elemental weapon imbues, which have largely fallen to the wayside.
The thing is though, we have tons of NPC abilities that use sonic attacks but no playable representation for sonic. That alone justifies the bard, even without having a buff-bot focus.