Vellesmere's Holy Transformation

You invoke the powers of your deity to transform a willing target with holy power. This spell must be cast by a player character or NPC of at least level 5 or challenge rating 5. In addition, this spell must be cast in a holy place, such as a temple or shrine, devoted to your deity. The target can change their class to paladin or cleric, and in addition they can change their ability score improvements, feats, and so on. The target can change ability scores as they see fit, so long as they keep within the rules of normal character creation. The target must keep their race and personality the same and abide by those rules for rebuilding their character. If it makes sense for things not explicitly mentioned to change, work with your Dungeon Master to determine if any material requirements or special location are required.