Nykthos, Shrine to Nyx [Theros] Magic 2012 you may put that card

you may put that card on the bottom of your library

reveal that card

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {1} Creatures with power 3 or greater don't untap during their controllers' untap steps

where X is the number of lands you control at that time

choose a letter

Nykthos, Shrine to Nyx [Theros] Magic 2012 you may put that cardSet: Theros Type: Legendary Land Rarity: Rare {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)