Ancient Excavation is a uncommon Instant card from Commander Anthology Volume II (CM2), collector number 150. Current market price: $0.86, TCGplayer market prices via Scryfall.
Draw cards equal to the number of cards in your hand, then discard a card for each card drawn this way. Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)