Eternal Princess Kaguya

Indestructible
If Eternal Princess Kaguya would be put into a graveyard or exiled, search your library for a Nandai card and put it into your hand, then shuffle Eternal Princess Kaguya, your graveyard, and all exiled cards you own into your library.
Exiled from Eientei for creating the Hourai Elixir, she came to Gensokyo.