Terrific Team-Up {3}{G}
Instant
This spell costs {2} less to cast if you control a permanent with mana value 4 or greater.
One or two target creatures you control each get +1/+0 until end of turn. They each deal damage equal to their power to target creature an opponent controls.
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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.
Roadside Blowout 87%
$0.11#23186
"This spell costs {2} less to cast if it targets a permanent with mana value 1."
Excalibur, Sword of Eden 85%
$16.26#899
"This spell costs {X} less to cast, where X is the total mana value of historic permanents you control."
Ghostfire Slice 84%
$0.37#4467
"This spell costs {2} less to cast if an opponent controls a multicolored permanent."
Oakhame Adversary 83%
$0.24#6159
"This spell costs {2} less to cast if an opponent controls a green permanent."
Count Nefaria 83%
$0.32#30959
"This spell costs {3} less to cast if you've sacrificed a permanent this turn."
Temporal Intervention 81%
$0.10#19253
"This spell costs {2} less to cast if a nonland permanent left the battlefield this turn or a spell was warped this turn."
Focus the Mind 80%
$0.24#9855
"This spell costs {2} less to cast if you've cast another spell this turn."