Boseiju, Who Shelters All is a mythic Legendary Land card from From the Vault: Realms (V12), collector number 2. Current market price: — (foil $19.74), TCGplayer market prices via Scryfall.
Boseiju enters tapped. {T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell can't be countered.