Geological Appraiser 
Creature — Human Artificer
$0.20 #13526 0.47 2.9 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%
$0.27↑#7061↑0.27↓2.9 years
"When this Aura enters, discover 3."
Trumpeting Carnosaur95%
$1.88↑#1659↑0.28↓2.9 years
"When this creature enters, discover 5."
Daring Discovery90%
$0.25↑#117540.00↓2.9 years
"Discover 4."
Franklin Richards, Ascendant87%
$0.24↑#141170.33↓0.3 years↓
"At the beginning of combat on your turn, if you've cast a noncreature spell this turn, discover 6."
Chimil, the Inner Sun86%
$7.85↑#743↑0.73↑2.9 years
"At the beginning of your end step, discover 5."
Primordial Gnawer84%
$0.18↓#20518↓0.36↓2.9 years
"When this creature dies, discover 3."
Sweet-Gum Recluse82%
$0.44↑#5067↑0.06↓5.9 years↑
"Cascade"
Curator of Sun's Creation81%
$0.23↑#110480.00↓2.9 years
"Whenever you discover, discover again for the same value. This ability triggers only once each turn."
Enlisted Wurm81%
$0.12↓#19144↓0.4417.5 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↓#4960↑0.18↓17.5 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%
$0.32↑#7465↑0.00↓14.4 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."
Annoyed Altisaur81%
$0.15↓#3984↑0.09↓5.9 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."
Maelstrom Colossus81%
$0.41↑#4540↑0.03↓5.9 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."
Boarding Party81%
$0.21↑#7866↑0.22↓5.9 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."
Captured Sunlight80%
$0.14↓#22133↓0.12↓17.5 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%
$0.16↓#19575↓0.24↓2.9 years
"When this creature dies, you may pay 
. If you do, discover 4."
. If you do, discover 4."
Meteoric Mace80%
$0.17↓#9505↑0.24↓5.9 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."
Demonic Dread80%
$0.30↑#21234↓0.19↓17.5 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."
Heralds of Tzeentch80%
$0.40↑#9361↑0.06↓4.0 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↑#21877↓0.00↓17.5 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."