Leonin Arbiter 
Creature — Cat Cleric
$0.38 #7235 0.93 16.1 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.Click a line or tag to filter
Cards similar to Leonin Arbiter 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.
Mindlock Orb88%
$0.48↑#19116↓1.20↑18.0 years↑
"Players can't search libraries."
Shadow of Doubt80%
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"Players can't search libraries this turn."
Stranglehold74%
$7.03↑#68591.71↑15.3 years
"Your opponents can't search libraries."
Ashiok, Dream Render71%
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"Spells and abilities your opponents control can't cause their controller to search their library."