Blood Funnel {1}{B}
Enchantment
Noncreature spells you cast cost {2} less to cast.
Whenever you cast a noncreature spell, counter that spell unless you sacrifice a 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.
Samut, the Driving Force 89%
$0.19#12884
"Noncreature spells you cast cost {X} less to cast, where X is your speed."
Focus the Mind 87%
$0.24#9855
"This spell costs {2} less to cast if you've cast another spell this turn."
Rally the Monastery 87%
$0.25#12529
"This spell costs {2} less to cast if you've cast another spell this turn."
Norman Osborn // Green Goblin 85%
$18.99#5662
"Spells you cast from your graveyard cost {2} less to cast."
Emet-Selch of the Third Seat 85%
$0.34#3271
"Spells you cast from your graveyard cost {2} less to cast."
Gigastorm Titan 84%
$0.12#23676
"This spell costs {3} less to cast if you've cast another spell this turn."
Brain Gorgers 83%
$0.12#19371
"When you cast this spell, any player may sacrifice a creature of their choice. If a player does, counter this card."