Wirecat 
Artifact Creature — Cat
This creature can't attack or block if an enchantment is on 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.
Lupine Prototype 88%
$0.25#9060
"This creature can't attack or block unless a player has no cards in hand."
Patchwork Beastie 85%
$0.25#12137
"This creature can't attack or block unless there are four or more card types among cards in your graveyard."
Flowering Lumberknot 85%
$0.05#31116
"This creature can't attack or block unless it's paired with a creature with soulbond."
Relic Golem 85%
$0.19#8619
"This creature can't attack or block unless an opponent has eight or more cards in their graveyard."
Tiger-Dillo 84%
$0.07#22651
"This creature can't attack or block unless you control another creature with power 4 or greater."
Wayward Swordtooth 83%
$4.18#986
"This creature can't attack or block unless you have the city's blessing."
Dog Umbra 82%
$0.14#7020
"As long as another player controls enchanted creature, it can't attack or block. Otherwise, this Aura has umbra armor."
Blind-Spot Giant 82%
$0.09#27137
"This creature can't attack or block unless you control another Giant."
Cowed by Wisdom 80%
$0.18#22095
"Enchanted creature can't attack or block unless its controller pays {1} for each card in your hand."