Golgari Grave-Troll 

Creature — Troll Skeleton
$0.83 #2728 0.48 20.9 years
This creature enters with a +1/+1 counter on it for each creature card in your graveyard.
Dredge 6 (If you would draw a card, you may mill six cards instead. If you do, return this card from your graveyard to your hand.)
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Cards similar to Golgari Grave-Troll 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.
Golgari Raiders88%
$0.20↓#21735↓0.00↓7.9 years↓
"This creature enters with a +1/+1 counter on it for each creature card in your graveyard."
Spike Hatcher88%
$0.47↓#28912↓0.35↓28.2 years↑
"
, Remove a +1/+1 counter from this creature: Regenerate this creature."
+1 more matching line
Rhizome Lurcher88%
$0.17↓#18010↓0.27↓7.9 years↓
"This creature enters with a number of +1/+1 counters on it equal to the number of creature cards in your graveyard."
Moldgraf Millipede88%
$0.12↓#9421↓0.35↓4.8 years↓
"When this creature enters, mill three cards, then put a +1/+1 counter on this creature for each creature card in your graveyard."
Zombie Mob85%
$0.20↓#31238↓0.21↓29.9 years↑
"This creature enters with a +1/+1 counter on it for each creature card in your graveyard."
+1 more matching line
Siegfried, Famed Swordsman85%
$0.19↓#7544↓0.21↓1.2 years↓
"When this card enters, mill three cards. Then put X +1/+1 counters on this card, where X is twice the number of creature cards in your graveyard."
Voracious Brood84%
$0.35↓#25915↓0.00↓0.2 years↓
"This creature enters with a +1/+1 counter on it for each creature card in your graveyard."
Drakestown Forgotten83%
$0.26↓#23523↓0.27↓12.2 years↓
"This creature enters with X +1/+1 counters on it, where X is the number of creature cards in all graveyards."
Experiment One82%
$0.19↓#10483↓0.00↓13.7 years↓
"Remove two +1/+1 counters from this creature: Regenerate it."