Calculated Dismissal 

Instant
Counter target spell unless its controller pays {3}.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
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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.
Sage's Dousing 99%
$0.23#18850
"Counter target spell unless its controller pays {3}. If you control a Wizard, draw a card."
No More Lies 98%
$0.33#5761
"Counter target spell unless its controller pays {3}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard."
Flip the Switch 97%
$0.15#12570
"Counter target spell unless its controller pays {4}. Create a 2/2 black Zombie creature token with decayed."