Ceta Sanctuary is a uncommon Enchantment card from Apocalypse (APC), collector number 20. Current market price: $0.23 (foil $5.50), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, if you control a red or green permanent, draw a card, then discard a card. If you control a red permanent and a green permanent, instead draw two cards, then discard a card.