Serran Archive

When Serra's Archive enters the battlefield,
search your library for three cards, exile them
in a face-down pile, and shuffle that pile. Then
shuffle your library.
Whenever you draw a card, you may reveal it.
If it is a Plains, a basic Forest, or a Miracle,
you gain 2 life and draw the top exiled card.
"Long ago, Serra's church was wise enough to entrust
copies of the most important texts to the elves."