Stonebinder's Familiar {W}
Creature — Spirit Dog
Whenever one or more cards are put into exile during your turn, put a +1/+1 counter on this creature. This ability triggers only once each turn.
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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.
Rakshasa Vizier 90%
$0.19#27200
"Whenever one or more cards are put into exile from your graveyard, put that many +1/+1 counters on this creature."
Hero of Bretagard 88%
$0.29#13654
"Whenever one or more cards are put into exile from your hand or a spell or ability you control exiles one or more permanents from the battlefield, put that many +1/+1 counters on this creature."
Laelia, the Blade Reforged 86%
$0.30#1297
"Whenever one or more cards are put into exile from your library and/or your graveyard, put a +1/+1 counter on this card."
Willow Geist 83%
$0.29#10368
"Whenever one or more cards leave your graveyard, put a +1/+1 counter on this creature."
Spirit Mascot 83%
$0.14#19858
"Whenever one or more cards leave your graveyard, put a +1/+1 counter on this creature."