Geological Appraiser 
Creature — Human Artificer
$0.29 #13223 0.62 2.8 years
When this creature enters, if you cast it, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)
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Cards similar to Geological Appraiser expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Etali's Favor96%
$0.32↑#6884↑0.24↓2.8 years
"When this Aura enters, discover 3."
Trumpeting Carnosaur95%
$1.60↑#1638↑0.32↓2.8 years
"When this creature enters, discover 5."
Daring Discovery90%
$0.28↓#116020.08↓2.8 years
"Discover 4."
Franklin Richards, Ascendant88%
$0.28↓#153650.00↓0.2 years↓
"At the beginning of combat on your turn, if you've cast a noncreature spell this turn, discover 6."
Chimil, the Inner Sun86%
$9.64↑#759↑0.74↑2.8 years
"At the beginning of your end step, discover 5."
Sweet-Gum Recluse86%
$0.42↑#4952↑0.12↓5.8 years↑
"Cascade"
Primordial Gnawer84%
$0.11↓#19932↓0.39↓2.8 years
"When this creature dies, discover 3."
Curator of Sun's Creation81%
$0.28↓#111840.42↓2.8 years
"Whenever you discover, discover again for the same value. This ability triggers only once each turn."
Annoyed Altisaur81%
$0.20↓#3970↑0.21↓5.8 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Enlisted Wurm81%
$0.11↓#18817↓0.44↓17.3 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Shardless Agent81%
$0.34↑#7378↑0.00↓14.3 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Bloodbraid Elf81%
$0.15↓#4839↑0.32↓17.3 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Maelstrom Colossus81%
$0.34↑#4503↑0.38↓5.8 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Boarding Party81%
$0.25↓#7817↑0.00↓5.8 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Captured Sunlight80%
$0.12↓#21904↓0.06↓17.3 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Digsite Conservator80%
$0.10↓#19188↓0.31↓2.8 years
"When this creature dies, you may pay 
. If you do, discover 4."
. If you do, discover 4."
Demonic Dread80%
$0.26↓#20982↓0.29↓17.3 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Into the Time Vortex80%
$0.26↓#5318↑0.35↓2.9 years
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Meteoric Mace80%
$0.17↓#9329↑0.535.8 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."
Kathari Remnant80%
$0.23↓#21417↓0.20↓17.3 years↑
"Cascade When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order."