Petrified Hamlet is a rare Land card from Secrets of Strixhaven (SOS), collector number 259. Current market price: $0.98 (foil $1.48), TCGplayer market prices via Scryfall.
When this land enters, choose a land card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities. Lands with the chosen name have "{T}: Add {C}." {T}: Add {C}.