Phantom Whelp {1}{U}
Creature — Illusion Dog
When this creature attacks or blocks, return it to its owner's hand at end of combat. (Return it only if it's 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.
Quicksilver Behemoth 100%
$0.12#27020
"When this creature attacks or blocks, return it to its owner's hand at end of combat."
Windscouter 100%
$0.13#31470
"When this creature attacks or blocks, return it to its owner's hand at end of combat."
Saprazzan Outrigger 84%
$0.18#31102
"When this creature attacks or blocks, put it on top of its owner's library at end of combat."