Wheel of Sun and Moon is a rare Enchantment — Aura card from Shadowmoor (SHM), collector number 243. Current market price: $3.28 (foil $28.69), TCGplayer market prices via Scryfall.
Enchant player If a card would be put into enchanted player's graveyard from anywhere, instead that card is revealed and put on the bottom of that player's library.