Suspicious Detonation {4}{R}
Sorcery
This spell costs {3} less to cast if you've sacrificed an artifact this turn.
This spell can't be countered. (This includes by the ward ability.)
Suspicious Detonation deals 4 damage to target 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.
Artificer Class 86%
$15.06#4038
"The first artifact spell you cast each turn costs {1} less to cast."
Stoic Rebuttal 83%
$0.30#6572
"This spell costs {1} less to cast if you control three or more artifacts."
Assassin's Ink 83%
$0.25#15287
"This spell costs {1} less to cast if you control an artifact and {1} less to cast if you control an enchantment."
Count Nefaria 82%
$0.32#30959
"This spell costs {3} less to cast if you've sacrificed a permanent this turn."
Cavern-Hoard Dragon 82%
$14.28#1475
"This spell costs {X} less to cast, where X is the greatest number of artifacts an opponent controls."
Gigastorm Titan 81%
$0.12#23676
"This spell costs {3} less to cast if you've cast another spell this turn."