Arbiter of the Ideal {4}{U}{U}
Creature — Sphinx
Flying
Inspired — Whenever this creature becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.
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Cards that do something similar expected a card that isn't here?
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Pain Seer 87%
$0.23#16956
"Whenever this creature becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's mana value."
Disciple of Deceit 80%
$0.21#16836
"Whenever this creature becomes untapped, you may discard a nonland card. If you do, search your library for a card with the same mana value as that card, reveal it, put it into your hand, then shuffle."