Seedtime {1}{G}
Instant
Cast this spell only during your turn.
Take an extra turn after this one if an opponent cast a blue spell this turn.
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Cards that do something similar 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.
Hewed Stone Retainers 93%
$0.07#29260
"Cast this spell only if you've cast another spell this turn."
Fires of Invention 91%
$0.28#14013
"You can cast spells only during your turn and you can cast no more than two spells each turn."
Talara's Battalion 85%
$0.32#20379
"Cast this spell only if you've cast another green spell this turn."
Once Upon a Time 85%
$1.45#8818
"If this spell is the first spell you've cast this game, you may cast it without paying its mana cost."
Hogaak, Arisen Necropolis 84%
$1.27#10356
"You can't spend mana to cast this spell."
+1 more matching line
Spider-Man 2099 84%
$0.67#8063
"You can't cast this card during your first, second, or third turns of the game."
Jace Reawakened 84%
$0.69#7422
"You can't cast this card during your first, second, or third turns of the game."
Serra Avenger 84%
$0.56#11778
"You can't cast this card during your first, second, or third turns of the game."