The Lion-Turtle is a rare Legendary Creature — Elder Cat Turtle card from Avatar: The Last Airbender (TLA), collector number 232. Current market price: $0.24 (foil $0.38), TCGplayer market prices via Scryfall.
Reach, vigilance When The Lion-Turtle enters, you gain 3 life. The Lion-Turtle can't attack or block unless there are three or more Lesson cards in your graveyard. {T}: Add one mana of any color.