Darigaaz's Caldera is a uncommon Land — Lair card from Dominaria Remastered (DMR), collector number 243. Current market price: $0.28 (foil $0.38), TCGplayer market prices via Scryfall.
When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand. {T}: Add {B}, {R}, or {G}.