Green Sun's Zenith [Mirrodin Besieged] Human Shapeshifter Assassin you may put it onto

you may put it onto the battlefield tapped

+1: You lose 1 life

Set: Kaladesh Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell

Set: Alpha Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another

with the Citadel enclosed in a mighty glass dome

Green Sun's Zenith [Mirrodin Besieged] Human Shapeshifter Assassin you may put it ontoSet: Mirrodin Besieged Type: Sorcery Rarity: Rare Cost: {X}{G} Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library. As the green sun crowned, Phyrexian prophecies glowed on the Tree of Tales.