Library of Phentallia

When Library of Phentallia enters the battlefield,
look at the top 5 cards of each player's library.
You may put the cards back in any order.
When Library of Phentallia enters the graveyard
from the battlefield, Shuffle all non-ruin cards in
your graveyard into your library.
"We finally found that library. Now lets look for the information we came here for." - Aneya, Outlander