Mine, Mine, Mine!

When this enchantment enters, each player puts their library into their hand. Players have no maximum hand size and don't lose the game for drawing from an empty library. Each player can't cast more than one spell each turn. When this enchantment leaves the battlefield, each player shuffles their hand and graveyard

into their library.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oj6a8dut1pb1hteh7iy4r.