Truth or Tale is a uncommon Instant card from Time Spiral (TSP), collector number 89. Current market price: $0.24 (foil $1.73), TCGplayer market prices via Scryfall.
Reveal the top five cards of your library and separate them into two piles. An opponent chooses one of those piles. Put a card from the chosen pile into your hand, then put all other cards revealed this way on the bottom of your library in any order.