Securitron Squadron {1}{W}
Artifact Creature — Robot
Squad {3} (As an additional cost to cast this spell, you may pay {3} any number of times. When this creature enters, create that many tokens that are copies of it.)
Vigilance
Whenever a creature token you control enters, put a +1/+1 counter on it.
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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.
Wildwood Mentor 94%
$0.42#13429
"Whenever a token you control enters, put a +1/+1 counter on this creature."
Nesting Dovehawk 91%
$20.99#3051
"Whenever a creature token you control enters, put a +1/+1 counter on this creature."
Cloakwood Swarmkeeper 84%
$0.19#14027
"Whenever one or more tokens you control enter, put a +1/+1 counter on this creature."