Urza's Ruinous Blast (CMM) (#842)

Name: Urza's Ruinous Blast
Mana Cost: {4}{W}
Type: Legendary Sorcery
Collector Number: 842
Oracle Text: (You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Exile all nonland permanents that aren't legendary.
Rarity: rare
Artist: Slawomir Maniak