Teacher of Forgotten Ways

At the beginning of your upkeep, you may put
up to 2 cards from the top of your library into
your graveyard.
{x}{g}{g}{t} Sacrifice Teacher of Forgotten Ways.
You may cast up to X target spirit cards from
your graveyard this turn. If you do, they enter
the battlefield tapped.
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"No amount of technology can tell you the truth,
only the Jukai forest can."