Avatar's Wrath - Avatar: The Last Airbender #12

Avatar's Wrath

Set: Avatar: The Last Airbender (TLA)
Collector Number: 12
Type: Sorcery
Rarity: Rare
Mana Value: 4.0

Choose up to one target creature, then airbend all other creatures. (Exile them. While each one is exiled, its owner may cast it for {2} rather than its mana cost.)
Until your next turn, your opponents can't cast spells from anywhere other than their hands.
Exile Avatar's Wrath.