Thawing Glaciers is a rare Land card from World Championship Decks 1997 (WC97), collector number jk144. Current market price: $10.86, TCGplayer market prices via Scryfall.
This land enters tapped. {1}, {T}: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return this land to its owner's hand at the beginning of the next cleanup step.