Mental Modulation {1}{U}
Instant
This spell costs {1} less to cast during your turn.
Tap target artifact or creature.
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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.
Naiad of Hidden Coves 89%
$0.14#10160
"During turns other than yours, spells you cast cost {1} less to cast."
Delightful Discovery 89%
$0.27#15894
"This spell costs {1} less to cast for each spell your opponents have cast this turn."
Focus the Mind 88%
$0.24#9855
"This spell costs {2} less to cast if you've cast another spell this turn."
Rally the Monastery 88%
$0.25#12529
"This spell costs {2} less to cast if you've cast another spell this turn."
Thrasta, Tempest's Roar 87%
$0.66#9357
"This spell costs {3} less to cast for each other spell cast this turn."
Hurkyl's Final Meditation 86%
$0.11#17224
"During turns other than yours, this spell costs {3} more to cast."
Gigastorm Titan 85%
$0.12#23676
"This spell costs {3} less to cast if you've cast another spell this turn."
Quicken 83%
$0.32#5885
"The next sorcery spell you cast this turn can be cast as though it had flash."
+1 more matching line