Sanctum of Hidden Truths

At the beginning of your precombat main phase, surveil X, where X is the number of Shrines you control. Then draw a card. (Look at the top X
cards of your library, then put any number of them
into your graveyard and the rest on top of your library
in any order.)
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Lies cover the truths.
Awaiting to be unveiled.
To tear the world asunder.