Teferi, Mage of Zhalfir 
Legendary Creature — Human Wizard
$0.68 #4329 1.17 19.9 years
Flash
Creature cards you own that aren't on the battlefield have flash.
Each opponent can cast spells only any time they could cast a sorcery.
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Cards similar to Teferi, Mage of Zhalfir 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.
Teferi, Time Raveler91%
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"Each opponent can cast spells only any time they could cast a sorcery."
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"Flash"
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"The next creature card you play this turn can be played as though it had flash."
Captain Mar-Vell, Space-Born73%
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"As long as an opponent has cast a spell this turn, you may cast spells as though they had flash."
Final-Word Phantom72%
$1.97↑#8008↓0.60↓2.6 years↓
"During each opponent's end step, you may cast spells as though they had flash."
+1 more matching line
Sphinx's Decree70%
$0.29↓#23976↓0.87↓8.6 years↓
"Each opponent can't cast instant or sorcery spells during that player's next turn."
Tidal Barracuda70%
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"Your opponents can't cast spells during your turn."