Rite of Passage {2}{G}
Enchantment
Whenever a creature you control is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)
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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.
Stalwart Successor 89%
$0.21#13528
"Whenever one or more counters are put on a creature you control, if it's the first time counters have been put on that creature this turn, put a +1/+1 counter on that creature."
Shaman of the Great Hunt 83%
$0.98#11770
"Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on it."
Battlefront Krushok 82%
$0.11#15355
"Each creature you control with a +1/+1 counter on it can't be blocked by more than one creature."
Enduring Scalelord 82%
$0.30#10894
"Whenever one or more +1/+1 counters are put on another creature you control, you may put a +1/+1 counter on this creature."
Sphere Grid 82%
$8.87#1407
"Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on that creature."
Cazur, Ruthless Stalker 82%
$0.38#7935
"Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on that creature."
Snapping Sailback 81%
$0.22#14168
"Whenever this creature is dealt damage, put a +1/+1 counter on it."