Im looking at it and I'm definitely intrigued, but i keep thinking its almost exclusively for maybe witches and clerics to get druid spells maybe?
Witches are Arcane Casters and can't get Druid Spells.
Sorcerer/Wizards can get Cure Spells from the Bard List.
Paladins and Rangers can get Cleric or Druid Spells
Clerics and druids casting Holy Sword at 7th level.