Liliana's Grief

When Liliana's Grief enters the battlefield, exile
a nonland card from your graveyard.
At the beginning of your upkeep, search your library for a card with the same name as the exiled card, reveal it, and put it into your hand.
If you can't, you lose the game.
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"Careful, Vess. This is a pit you might never climb out of." -- Gideon Jura