I don't remember what update it was when they changed the Two-pip shadow spells (Dark Nova, Fiend, Shepherd), but I remember once upon a time Fiend and Shepherd disliked Blades and Traps. I personally believe they should go back to what they were before because now, there's no diversity with them. I suppose it isn't that big of a deal when almost nobody uses them in regular combat anyway, but I feel like they were made to be unique and they really aren't anymore.