Kyoshi Island Plaza is a uncommon Legendary Enchantment — Shrine card from Avatar: The Last Airbender (TLA), collector number 184. Current market price: $0.28 (foil $0.34), TCGplayer market prices via Scryfall.
When Kyoshi Island Plaza enters, search your library for up to X basic land cards, where X is the number of Shrines you control. Put those cards onto the battlefield tapped, then shuffle. Whenever another Shrine you control enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.