Elfhame Sanctuary is a uncommon Enchantment card from Invasion (INV), collector number 185. Current market price: $0.77 (foil $8.44), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. If you do, you skip your draw step this turn.