Dragonologist 

Creature — Human Wizard
$0.68 #6385 0.15 1.4 years
When this creature enters, look at the top six cards of your library. You may reveal an instant, sorcery, or Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Untapped Dragons you control have hexproof.
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Cards similar to Dragonologist 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.
Augur of Bolas78%
$0.14↓#11314↓0.0614.1 years↑
"When this creature enters, look at the top three cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order."
Kolaghan Warmonger78%
$0.19↓#14980↓0.43↑3.3 years↑
"Whenever this creature attacks, look at the top six cards of your library. You may reveal a Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order."
Silundi Vision // Silundi Isle74%
$0.43↓#2009↑0.155.9 years↑
"Look at the top six cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in a random order."
Uncovered Clues74%
$0.10↓#23750↓0.56↑13.3 years↑
"Look at the top four cards of your library. You may reveal up to two instant and/or sorcery cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order."
Arcane Infusion74%
$0.18↓#12178↓0.00↓4.9 years↑
"Look at the top four cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in a random order."
Oak Street Innkeeper73%
$0.14↓#16313↓0.50↑13.9 years↑
"During turns other than yours, tapped creatures you control have hexproof."
Saryth, the Viper's Fang72%
$1.76↑#1250↑0.39↑4.9 years↑
"Other untapped creatures you control have hexproof."
Peer Through Depths72%
$0.23↓#15020↓0.26↑21.9 years↑
"Look at the top five cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order."
The Wandering Rescuer70%
$1.93↑#4741↑0.211.9 years
"Other tapped creatures you control have hexproof."
Orb of Dragonkind70%
$1.13↑#3787↑0.135.1 years↑
"
,
, Sacrifice this artifact: Look at the top seven cards of your library. You may reveal a Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order."
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