
I think even with the interpretation that the library eats your resources if you don't return a book (which I agree with), this card seems extremely powerful. As soon as you add the Necronomicon, you can sort of break a deck with no combo necessary.
- Play the Necronomicon, use all of its secrets, then put it in the bottom of your deck.
- Draw through your deck as quickly as possible.
- With your deck empty, play the Necronomicon to your Library again. Use the secrets. Put it on the bottom of your deck, where it will be the only card.
- Draw the Necronomicon on your next draw phase.
- Repeat.
You never need to recycle your deck, just keep getting a free Necronomicon every turn. No more weaknesses. Klaatu berata nehcoughcoughcough
Have I missed this something?