Broken Ambitions {X}{U}
Instant
Counter target spell unless its controller pays {X}. Clash with an opponent. If you win, that spell's controller mills four cards. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)
click a line to search just that ability, click more to combine them
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.
Mindswipe 99%
$0.34#14380
"Counter target spell unless its controller pays {X}. this card deals X damage to that spell's controller."
Syncopate 99%
$0.28#3891
"Counter target spell unless its controller pays {X}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard."
Frightful Delusion 97%
$0.08#25918
"Counter target spell unless its controller pays {1}. That player discards a card."
Spell Shrivel 96%
$0.22#16349
"Counter target spell unless its controller pays {4}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard."
Silumgar's Scorn 96%
$0.27#12893
"Counter target spell unless its controller pays {1}. If you revealed a Dragon card or controlled a Dragon as you cast this spell, counter that spell instead."
Spell Contortion 96%
$0.16#24408
"Counter target spell unless its controller pays {2}. Draw a card for each time this card was kicked."
Flip the Switch 96%
$0.15#12570
"Counter target spell unless its controller pays {4}. Create a 2/2 black Zombie creature token with decayed."
Lofty Denial 96%
$0.26#5232
"Counter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead."
Jwari Disruption // Jwari Ruins 96%
$0.42#2704
"Counter target spell unless its controller pays {1}."