Kelabit Highlands

Kelabit Highlands enters the battlefield tapped. {1}, {T}: Add {R}{G}. {T}, Sacrifice a historic permanent, create a colorless artifact token named Standing Megalith with: “{T}, Remove X ancestor counters from this artifact: Add X mana of any one color. Whenever one or more nonland cards are put into your graveyard from anywhere, put an ancestor counter on this artifact. This ability triggers only once each turn.”