Natural Selection 
Instant
$80.84 #28198 0.33 33.1 years
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
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Cards similar to Natural Selection 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.
Visions94%
$0.18↓#276120.58↑32.3 years
"Look at the top five cards of target player's library. You may then have that player shuffle that library."
Tahngarth's Glare92%
$0.09↓#282270.00↓25.3 years↓
"Look at the top three cards of target opponent's library, then put them back in any order. That player looks at the top three cards of your library, then puts them back in any order."
Portent88%
$0.38↓#4038↑0.19↓31.3 years↓
"Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle."
Index87%
$0.11↓#12792↑0.56↑25.3 years↓
"Look at the top five cards of your library, then put them back in any order."
Omen86%
$0.16↓#21324↑0.2929.3 years↓
"Look at the top three cards of your library, then put them back in any order. You may shuffle."
Ponder86%
$1.88↓#144↑0.15↓18.9 years↓
"Look at the top three cards of your library, then put them back in any order. You may shuffle."
Elemental Augury86%
$0.47↓#288340.48↑31.3 years↓
"
: Look at the top three cards of target player's library, then put them back in any order."
: Look at the top three cards of target player's library, then put them back in any order."
Soothsaying84%
$1.49↓#8471↑0.07↓26.9 years↓
"
: Look at the top X cards of your library, then put them back in any order."
: Look at the top X cards of your library, then put them back in any order."
Second Sight82%
$0.16↓#250770.3722.6 years↓
"• Look at the top five cards of target opponent's library, then put them back in any order."
Architects of Will82%
$0.29↓#20426↑0.07↓17.3 years↓
"When this creature enters, look at the top three cards of target player's library, then put them back in any order."
Sage of Epityr82%
$0.17↓#17307↑0.2819.9 years↓
"When this creature enters, look at the top four cards of your library, then put them back in any order."
Discombobulate82%
$0.11↓#21905↑0.3323.9 years↓
"Counter target spell. Look at the top four cards of your library, then put them back in any order."
Spire Owl82%
$0.14↓#19287↑0.3027.9 years↓
"When this creature enters, look at the top four cards of your library, then put them back in any order."
Sage Aven82%
$0.17↓#279820.15↓23.9 years↓
"When this creature enters, look at the top four cards of your library, then put them back in any order."
Inkfathom Divers82%
$0.18↓#249260.07↓18.9 years↓
"When this creature enters, look at the top four cards of your library, then put them back in any order."
Sage Owl82%
$0.07↓#14426↑0.3229.2 years↓
"When this creature enters, look at the top four cards of your library, then put them back in any order."
Pondering Mage80%
$0.19↓#19853↑0.57↑7.2 years↓
"When this creature enters, look at the top three cards of your library, then put them back in any order. You may shuffle. Draw a card."
Aven Fateshaper80%
$0.10↓#247700.2823.9 years↓
"When this creature enters, look at the top four cards of your library, then put them back in any order."
Gilt-Leaf Seer80%
$0.12↓#233780.4318.9 years↓
", 
: Look at the top two cards of your library, then put them back in any order."
, : Look at the top two cards of your library, then put them back in any order."
Trickery Charm79%
$0.27↓#9939↑0.00↓23.9 years↓
"• Look at the top four cards of your library, then put them back in any order."