Merfolk Trickster 

Creature — Merfolk Wizard
$0.24 #9915 0.18 8.5 years
Flash
When this creature enters, tap target creature an opponent controls. It loses all abilities until end of turn.
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Cards similar to Merfolk Trickster 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.
The Wondrous Wasp98%
$1.17↑#12641↓0.50↑0.3 years↓
"When this card enters, tap up to one target creature. It loses all abilities for as long as this card remains on the battlefield."
+1 more matching line
Chrome Prowler88%
$0.17↓#20054↓0.05↓3.7 years↓
"When this creature enters, tap target creature an opponent controls."
+1 more matching line
Heavy Infantry88%
$0.01↓#30549↓0.06↓11.3 years↑
"When this creature enters, tap target creature an opponent controls."
Glaring Aegis88%
$0.07↓#18047↓0.06↓11.6 years↑
"When this Aura enters, tap target creature an opponent controls."
Tempest Caller88%
$0.24#97080.38↑9.1 years
"When this creature enters, tap all creatures target opponent controls."
Leonin Snarecaster88%
$0.04↓#24777↓0.07↓13.1 years↑
"When this creature enters, you may tap target creature."
Somnomancer88%
$0.13↓#30880↓0.2518.5 years↑
"When this creature enters, you may tap target creature."
Niblis of the Mist85%
$0.15↓#28699↓0.06↓14.7 years↑
"When this creature enters, you may tap target creature."
Shrieking Mogg83%
$0.54↑#25468↓0.37↑26.7 years↑
"When this creature enters, tap all other creatures."
Subjugator Angel82%
$0.31↑#94390.33↑10.2 years↑
"When this creature enters, tap all creatures your opponents control."
Intrusive Packbeast81%
$0.04↓#30067↓0.098.0 years
"When this creature enters, tap up to two target creatures your opponents control."