Barrier of Bones 
Creature — Skeleton Wall
$0.08 #15150 0.00 7.9 years
Defender
When this creature enters, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
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Cards similar to Barrier of Bones 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.
Whisper Agent98%
$0.07↓#23860↓0.43↑7.9 years
"When this creature enters, surveil 1."
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$0.08#22325↓0.18↑2.6 years↓
"When this creature enters, surveil 1."
Shore Lurker98%
$0.09↑#24720↓0.000.6 years↓
"When this creature enters, surveil 1."
Imperious Inkmage98%
$0.05↓#25419↓0.000.4 years↓
"When this creature enters, surveil 2."
Dimir Informant98%
$0.15↑#24240↓0.007.9 years
"When this creature enters, surveil 2."
A.I.M. Synthoids98%
$0.11↑#20319↓0.000.2 years↓
"When this creature enters, surveil 2."
Sterling Hound98%
$0.17↑#172780.072.4 years↓
"When this creature enters, surveil 2."
Watcher in the Mist98%
$0.05↓#28012↓0.007.9 years
"When this creature enters, surveil 2."
Wreckage Wickerfolk98%
$0.21↑#141600.15↑1.6 years↓
"When this creature enters, surveil 2."
Underwater Tunnel // Slimy Aquarium96%
$0.18↑#11106↑0.17↑1.9 years↓
"When you unlock this door, surveil 2."
Seekers' Squire94%
$0.12↑#25036↓0.29↑8.9 years↑
"When this creature enters, it explores."
River Herald Guide94%
$0.13↑#180450.002.8 years↓
"When this creature enters, it explores."
Tishana's Wayfinder94%
$0.19↑#21024↓0.44↑8.9 years↑
"When this creature enters, it explores."
Merfolk Branchwalker94%
$0.26↑#167320.55↑8.9 years↑
"When this creature enters, it explores."
Emissary of Sunrise94%
$0.11↑#27663↓0.22↑8.9 years↑
"When this creature enters, it explores."
Ixalli's Diviner94%
$0.17↑#22444↓0.058.9 years↑
"When this creature enters, it explores."
Sunrise Seeker94%
$0.05↓#29882↓0.29↑8.9 years↑
"When this creature enters, it explores."
Brazen Buccaneers94%
$0.21↑#24142↓0.008.9 years↑
"When this creature enters, it explores."
River Herald Scout94%
$0.16↑#166850.002.8 years↓
"When this creature enters, it explores."
Pathfinding Axejaw94%
$0.20↑#160000.002.8 years↓
"When this creature enters, it explores."