Ethersworn Sphinx 
Artifact Creature — Sphinx
$0.18 #9267 0.22 5.2 years
Affinity for artifacts (This spell costs 
less to cast for each artifact you control.)
less to cast for each artifact you control.)Flying
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card with lesser mana value. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
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Cards similar to Ethersworn Sphinx 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.
Shardless Agent95%
$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 Elf95%
$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."
Annoyed Altisaur95%
$0.20↑#3970↑0.215.8 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 Wurm95%
$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."
Maelstrom Colossus95%
$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 Party95%
$0.25↑#78170.00↓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 Sunlight94%
$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."
Into the Time Vortex94%
$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 Mace94%
$0.17↓#93290.53↑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."
Ardent Plea94%
$1.48↑#15858↓0.81↑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."
Kathari Remnant93%
$0.23↑#21417↓0.2017.3 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."
+1 more matching line
Demonic Dread93%
$0.26↑#20982↓0.2917.3 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."
Heralds of Tzeentch93%
$0.71↑#91650.213.9 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."
Throes of Chaos92%
$0.16↓#5448↑0.00↓7.2 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."
Forceful Denial92%
$0.21↑#93450.305.8 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."
Let the Galaxy Burn91%
$0.64↑#96430.43↑3.9 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."
Bituminous Blast91%
$0.17↓#75130.07↓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."
Etherium-Horn Sorcerer90%
$0.24↑#86620.44↑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."
Memory Guardian90%
$0.33↑#13761↓0.151.6 years↓
"Affinity for artifacts"
+1 more matching line
Qumulox90%
$0.10↓#24588↓0.2222.3 years↑
"Affinity for artifacts"