Sword of Spirit
Legend
The devil arrives wanting souls, contracts in hand ready to be bound to the devil. The demon? It wants babies, and it wants them so it can devour them right then and there in front of the character. That is what happens when good tries to work with true evil.
Yes, good idea, but it still sort of misses the point. It's about having access to the capability in the first place, while the class that should have access to the capability doesn't.
As an analogy, it would be like giving paladins a very nature-oriented spell that neither rangers nor druids get for some reason. (Let's say conjure woodland being and conjure fey were paladin, but not druid or ranger, for instance). Sure, it might fit for an Oath of the Ancients paladin, but it would fit more for ranger and druid, who don't get access, while all paladins do.