Roots of Wisdom

Sorcery

Mill three cards, then return a land card or Elf card from your graveyard to your hand. If you can't, draw a card.

Though imprisoned in Jaspera trees, the elvish gods known as the Einir still whisper through the ages.

2021-02-05 If there's a land card or Elf card in your graveyard, you must return one. You can't choose not to in order to draw a card.
2021-02-05 Roots of Wisdom doesn't target any cards in graveyards. You may return a land card or an Elf card that was just milled or one that was already there.

Card is in preconstructed decks:

mtg.wtf