Guardian Project 
Enchantment
$12.96 #323 0.60 7.7 years
Whenever a nontoken creature you control enters, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.
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Cards similar to Guardian Project 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.
Soul of the Harvest84%
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"Whenever another nontoken creature you control enters, you may draw a card."
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"Whenever a nontoken creature you control enters during combat, draw a card."
Huatli, Radiant Champion73%
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"−8: You get an emblem with "Whenever a creature you control enters, you may draw a card.""
Candles of Leng73%
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"
, 
: Reveal the top card of your library. If it has the same name as a card in your graveyard, put it into your graveyard. Otherwise, draw a card."
, : Reveal the top card of your library. If it has the same name as a card in your graveyard, put it into your graveyard. Otherwise, draw a card."
Mentor of the Meek72%
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"Whenever another creature you control with power 2 or less enters, you may pay 
. If you do, draw a card."
. If you do, draw a card."
Gladewalker Ritualist72%
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"Whenever another creature you control named this card enters, draw a card."
The Great Henge72%
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"Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card."
Tocasia's Welcome72%
$1.40↓#817↓0.16↓3.9 years↓
"Whenever one or more creatures you control with mana value 3 or less enter, draw a card. This ability triggers only once each turn."
Lonis, Cryptozoologist71%
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"Whenever another nontoken creature you control enters, investigate."
Canoptek Spyder71%
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"Whenever another nontoken artifact creature or Vehicle you control enters, draw a card."
Kindred Discovery70%
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"Whenever a creature you control of the chosen type enters or attacks, draw a card."
Garruk's Packleader70%
$0.15↓#2002↓0.20↓16.3 years↑
"Whenever another creature you control with power 3 or greater enters, you may draw a card."