Whenever Gran-Gran becomes tapped, draw a card, then discard a card.
Noncreature spells you cast cost 1 less to cast as long as there are three or more Lesson cards in your graveyard.
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Avatar Aang // Aang, Master of ElementsRaised Foil363 · mythic$4,737.63
Toph, the First MetalbenderBorderless · Neon Ink Foil362 · rare$1,054.00
Aang, Swift Savior // Aang and La, Ocean's FuryBorderless · Neon Ink Foil359 · rare$618.74
Katara, the FearlessBorderless · Neon Ink Foil361 · rare$558.56
Fire Lord ZukoBorderless · Neon Ink Foil360 · rare$537.44
Badgermole CubBorderless326 · mythic$55.74
Wan Shi Tong, LibrarianBorderless320 · mythic$49.09
Badgermole Cub167 · mythic$41.27
The Walls of Ba Sing SeBorderless329 · mythic$30.60
Wan Shi Tong, Librarian78 · mythic$30.00
The Walls of Ba Sing Se261 · mythic$24.55
Ozai, the Phoenix KingBorderless311 · mythic$23.09
Gran-Gran