Backstreet Bruiser {1}{U}
Creature — Octopus Rogue
Defender
As long as there are two or more counters among creatures you control, this creature can attack as though it didn't have defender.
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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.
Demon Wall 87%
$0.23#16021
"As long as this creature has a counter on it, it can attack as though it didn't have defender."
+1 more matching line
Faithbound Judge // Sinner's Judgment 86%
$0.78#11161
"As long as this creature has three or more judgment counters on it, it can attack as though it didn't have defender."
Mogg Toady 84%
$0.11#30572
"This creature can't attack unless you control more creatures than defending player."
Goblin Goon 84%
$0.35#20282
"This creature can't attack unless you control more creatures than defending player."
Nils, Discipline Enforcer 82%
$0.25#4012
"Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays {X}, where X is the number of counters on that creature."
Orcish Conscripts 80%
#30294
"This creature can't attack unless at least two other creatures attack."
Goblin Cohort 80%
$0.24#24308
"This creature can't attack unless you've cast a creature spell this turn."
Mogg Conscripts 80%
#27105
"This creature can't attack unless you've cast a creature spell this turn."
Lovestruck Beast // Heart's Desire 80%
$0.23#12443
"This creature can't attack unless you control a 1/1 creature."