Arcane Heist 


Sorcery
You may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost. If that spell would be put into their graveyard, exile it instead.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
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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.
Memory Plunder 98%
$1.30#4606
"You may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost."
Sins of the Past 89%
$0.42#22368
"Until end of turn, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Exile this card."
Wrexial, the Risen Deep 88%
$1.87#5216
"Whenever this card deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead."
Gale, Waterdeep Prodigy 86%
$0.48#5161
"Whenever you cast an instant or sorcery spell from your hand, you may cast up to one target card of the other type from your graveyard. If a spell cast from your graveyard this way would be put into your graveyard, exile it instead."
Katilda and Lier 84%
$0.39#16866
"Whenever you cast a Human spell, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."
Overmaster 83%
$2.99#3095
"The next instant or sorcery spell you cast this turn can't be countered."
Harness the Storm 83%
$0.30#16961
"Whenever you cast an instant or sorcery spell from your hand, you may cast target card with the same name as that spell from your graveyard."
Lier, Disciple of the Drowned 83%
$0.43#2209
"Each instant and sorcery card in your graveyard has flashback. The flashback cost is equal to that card's mana cost."
Power Pack 83%
#21710
"Whenever this card deals combat damage to a player, exile target instant or sorcery card from your graveyard chosen at random. At the beginning of your next upkeep, you may cast that card without paying its mana cost. If that spell would be put into your graveyard, exile it instead."
Draconic Intervention 82%
$0.28#14995
"As an additional cost to cast this spell, exile an instant or sorcery card from your graveyard."
Kess, Dissident Mage 82%
$4.32#3076
"Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead."
Flashback 81%
$3.87#2830
"Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."
Suffocation 81%
$0.15#31137
"Cast this spell only if you were dealt damage this turn by a red instant or sorcery spell."
Past in Flames 80%
$4.21#1265
"Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."
Efreet Flamepainter 80%
$0.24#15040
"Whenever this creature deals combat damage to a player, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead."
Sphinx's Decree 80%
$0.25#23745
"Each opponent can't cast instant or sorcery spells during that player's next turn."
Niv-Mizzet, Supreme 80%
$0.36#13141
"Each instant and sorcery card in your graveyard that's exactly two colors has jump-start."
Bedlam Reveler 80%
$0.22#13672
"This spell costs {1} less to cast for each instant and sorcery card in your graveyard."
+1 more matching line
The Dawning Archaic 80%
$1.22#9492
"This spell costs {1} less to cast for each instant and sorcery card in your graveyard."