Well, I could fall back on the ancestrial leanings and make it forest instead of urban, if urban is going to be too restrictive in a game. The background still works as a linkage. My primary goal is to give a little more healing potential to the party, even if it's just 1 spell a day, it's still 1 spell a day. The druid 0th level spells are usually just useful things like mend and detect magic and such.