Genju of the Realm is a rare Legendary Enchantment — Aura card from Betrayers of Kamigawa (BOK), collector number 151. Current market price: $4.94 (foil $12.58), TCGplayer market prices via Scryfall.
Enchant land {2}: Enchanted land becomes a legendary 8/12 Spirit creature with trample until end of turn. It's still a land. When enchanted land is put into a graveyard, you may return Genju of the Realm from your graveyard to your hand.