Avatar's Wrath (TLA 12)

Sorcery • Mana cost: {2}{W}{W} • Avatar: The Last Airbender • Rare

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.

Illustrated by Ainezu.