Mindlock Orb 
Artifact
$0.53 #18780 0.92 17.9 years
Players can't search libraries.
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Cards similar to Mindlock Orb 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.
Shadow of Doubt95%
$2.72↑#191190.62↓20.9 years↑
"Players can't search libraries this turn."
Stranglehold90%
$7.35↑#6605↑0.70↓15.2 years↓
"Your opponents can't search libraries."
Leonin Arbiter87%
$0.34↓#7046↑0.8715.9 years↓
"Players can't search libraries. Any player may pay 
for that player to ignore this effect until end of turn."
for that player to ignore this effect until end of turn."
Ashiok, Dream Render82%
$1.16↑#2633↑0.967.3 years↓
"Spells and abilities your opponents control can't cause their controller to search their library."
Archive Trap74%
$0.92↑#5757↑0.24↓16.9 years
"If an opponent searched their library this turn, you may pay 
rather than pay this spell's mana cost."
rather than pay this spell's mana cost."
Opposition Agent72%
$20.22↑#568↑2.32↑5.8 years↓
"You control your opponents while they're searching their libraries."