Undergrowth Scavenger 

Creature — Fungus Horror
This creature enters with a number of +1/+1 counters on it equal to the number of creature cards in all graveyards.
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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.
Centaur Vinecrasher 93%
$0.17#10983
"This creature enters with a number of +1/+1 counters on it equal to the number of land cards in all graveyards."
Drakestown Forgotten 86%
#22994
"This creature enters with X +1/+1 counters on it, where X is the number of creature cards in all graveyards."
Rhizome Lurcher 84%
$0.24#17558
"This creature enters with a number of +1/+1 counters on it equal to the number of creature cards in your graveyard."
Thought Sponge 82%
$0.31#16542
"This creature enters with a number of +1/+1 counters on it equal to the greatest number of cards an opponent has drawn this turn."