Ruinous Waterbending - Avatar: The Last Airbender #118

Ruinous Waterbending

Set: Avatar: The Last Airbender (TLA)
Collector Number: 118
Type: Sorcery — Lesson
Rarity: Uncommon
Mana Value: 3.0

As an additional cost to cast this spell, you may waterbend {4}. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for {1}.)
All creatures get -2/-2 until end of turn. If this spell's additional cost was paid, whenever a creature dies this turn, you gain 1 life.