Riverchurn Monument (Gold Foil) Aetherdrift Trample Cultivator Colossus's power and

Trample Cultivator Colossus's power and toughness are each equal to the number of lands you control

Indestructible Equipped creature gets +3/+3 and has vigilance and "{T}

Sacrifice a Desert: Exile target creature card with mana value X from your graveyard

{T}: Add one mana of any color

Riverchurn Monument (Gold Foil) Aetherdrift Trample Cultivator Colossus's power and{1}, {T}: Any number of target players each mill two cards. (Each of them puts the top two cards of their library into their graveyard.) Exhaust {2}{U}{U}, {T}: Any number of target players each mill cards equal to the number of cards in their graveyard. (Activate each exhaust ability only once.)