Seam Rip 
Enchantment
When this enchantment enters, exile target nonland permanent an opponent controls with mana value 2 or less until this enchantment leaves the battlefield.
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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.
Temporary Lockdown 85%
$0.30#17697
"When this enchantment enters, exile each nonland permanent with mana value 2 or less until this enchantment leaves the battlefield."