I find this card is so OP. Especially if you get it early. Once Hermione starts to get some spells you start to draw cards, she can play like 10 spells a turn. You just destroy villains.
I would take it out of the game, but my brother who plays Hermione will not hear of it.
Especially if you pair it with Transfigurations proficiency. Trash some crummy item to fish out another spell and maybe even one that lets you draw yet again.
Which may or may not be hilarious.