Yue, the Moon Spirit (#338)

Type: Legendary Creature — Spirit Ally

Text: Flying, vigilance
Waterbend {5}, {T}: You may cast a noncreature spell from your hand without paying its mana cost. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for {1}.)

Set: Avatar: The Last Airbender (#338)