Teferi's Response 
Instant
$10.25 #22618 0.29 26.0 years
Counter target spell or ability an opponent controls that targets a land you control. If a permanent's ability is countered this way, destroy that permanent.
Draw two cards.
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Cards similar to Teferi's Response 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.
Summon: Bahamut78%
$26.68↑#1207↑0.95↑1.4 years↓
"Draw two cards."
Desert Twister78%
$0.17↓#18000↑0.3132.8 years↑
"Destroy target permanent."
Vindicate77%
$0.31↓#1161↑0.1925.4 years
"Destroy target permanent."
Winnow76%
$0.33↓#29836↓0.12↓26.0 years
"Draw a card."
Lost in the Mist75%
$0.16↓#244180.11↓15.1 years↓
"Counter target spell. Return target permanent to its owner's hand."
Disallow74%
$0.37↓#1829↑0.44↑9.7 years↓
"Counter target spell, activated ability, or triggered ability."
Angel of Despair74%
$0.48↓#5110↑0.2420.7 years↓
"When this creature enters, destroy target permanent."
Skyshroud Blessing74%
$0.21↓#231900.2825.7 years
"Draw a card."
Smash73%
$0.08↓#183200.3025.4 years
"Draw a card."
Eject73%
$0.19↓#11185↑0.82↑1.4 years↓
"Draw a card."
Karmic Justice72%
$1.74↓#3983↑0.59↑25.1 years
"Whenever a spell or ability an opponent controls destroys a noncreature permanent you control, you may destroy target permanent that opponent controls."
Violent Ultimatum72%
$0.32↓#187600.18↓18.0 years↓
"Destroy three target permanents."
Bind72%
$5.48↓#15456↑0.58↑26.0 years
"Counter target activated ability."
+1 more matching line
Saltblast72%
$0.13↓#28844↓0.2921.2 years↓
"Destroy target nonwhite permanent."
Divination72%
$0.07↓#6283↑0.00↓17.3 years↓
"Draw two cards."
Weave Fate72%
$0.09↓#235650.00↓12.1 years↓
"Draw two cards."
Quick Study72%
$0.24↓#2636↑0.09↓3.1 years↓
"Draw two cards."
Touch of Brilliance72%
$0.12↓#30376↓0.00↓29.5 years↑
"Draw two cards."
Counsel of the Soratami72%
$0.10↓#17637↑0.00↓22.1 years↓
"Draw two cards."
Gust of Wind72%
$0.19↓#14570↑0.05↓6.5 years↓
"Draw a card."