Green Sun's Zenith [Mirrodin Besieged] Normal sacrifice Koskun Falls unless you

sacrifice Koskun Falls unless you tap an untapped creature you control

{R}: Granite Gargoyle gets +0/+1 until end of turn

where X is that spell's converted mana cost

Zombie creatures you control get +2/+1

create an X/X colorless Construct artifact creature token

Green Sun's Zenith [Mirrodin Besieged] Normal sacrifice Koskun Falls unless youSet: Mirrodin Besieged Type: Sorcery Rarity: Rare Cost: {X}{G} Search your library for a green creature card with converted mana cost X or less, put it onto the battlefield, then shuffle your library. Shuffle Green Sun's Zenith into its owner's library. As the green sun crowned, Phyrexian prophecies glowed on the Tree of Tales.