Junk Winder 
Creature — Serpent
$0.25 #1844 0.50 5.2 years
Affinity for tokens (This spell costs 
less to cast for each token you control.)
less to cast for each token you control.)Whenever a token you control enters, tap target nonland permanent an opponent controls. It doesn't untap during its controller's next untap step.
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Cards similar to Junk Winder 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.
Tamiyo, Field Researcher75%
$0.60↑#2997↓0.4710.1 years↑
"−2: Tap up to two target nonland permanents. They don't untap during their controller's next untap step."
Ojutai, Soul of Winter74%
$0.47↑#9357↓0.4111.6 years↑
"Whenever a Dragon you control attacks, tap target nonland permanent an opponent controls. That permanent doesn't untap during its controller's next untap step."