Boseiju, Who Shelters All is a rare Legendary Land card from Secret Lair Drop (SLD), collector number 2657. Current market price: $14.36 (foil $15.25), 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.