Creatures your opponents control lose flying until end of turn if {G} was spent to play Invert the Skies, and creatures you control gain flying until end of turn if {U} was spent to play it. (Do both if {G}{U} was spent)

• Number: 155
• Rarity: U
• Type: Instant
• Mana cost: 3{1xG/U}
• Color: Hybrid
• Artist: Randy Gallegos