River Kelpie 
Creature — Beast
$0.35 #3474 0.23 18.5 years
Whenever this creature or another permanent enters from a graveyard, draw a card.
Whenever a player casts a spell from a graveyard, draw a card.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
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Cards similar to River Kelpie 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.
Breathless Knight75%
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"Whenever this creature or another creature you control enters, if that creature entered from a graveyard or you cast it from a graveyard, put a +1/+1 counter on this creature."
Laboratory Drudge74%
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Secrets of the Dead73%
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"Whenever you cast a spell from your graveyard, draw a card."
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"Whenever an opponent casts a spell during your turn, draw a card."
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Insight70%
$1.59↑#11158↓0.2429.0 years↑
"Whenever an opponent casts a green spell, you draw a card."