Ruinous Waterbending (Avatar: The Last Airbender 118) - Uncommon Magic: The Gathering Card

As an additional cost to cast this spell, you may waterbend . (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for .)
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.