I know that being able to train spells such as Headless Horseman has been brought up, but what if you added a secret trainer that sold these cards like in Colossus Boulevard?
This would be amazing! Though, considering there loremaster spells, people would go crazy. It would probably be better if they added the tc version of the spell or reagents needed to craft the spell. It would be a good idea though because it should sell Reindeer Knight.