I haven’t fleshed out this idea, but I’d love to see a worker who added instruments. Lyres, lutes, hand drums, etc.
A variety of classes could already make use of them (Dancer, Thief, Druid…) and a new hero (mage or rogue) could be a bard. Not sure what the benefit would be but I imagine it would buff the other heroes someway. Maybe the other heroes receive a percentage of the bard’s attack, defense, and evasion or something.