Appendage Amalgam 
Enchantment Creature — Horror
$0.17 #13695 0.11 1.9 years
Flash
Whenever this creature attacks, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
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Cards similar to Appendage Amalgam 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.
Fear of Surveillance100%
$0.22↑#135590.091.9 years
"Whenever this creature attacks, surveil 1."
Nightveil Sprite100%
$0.11↓#7481↑0.057.9 years↑
"Whenever this creature attacks, surveil 1."
Il Mheg Pixie100%
$0.17#130850.101.2 years
"Whenever this creature attacks, surveil 1."
Boulderborn Dragon97%
$0.16↓#128490.051.4 years
"Whenever this creature attacks, surveil 1."
Sanitation Automaton90%
$0.08↓#22325↓0.182.6 years
"When this creature enters, surveil 1."
Whisper Agent90%
$0.07↓#23860↓0.43↑7.9 years↑
"When this creature enters, surveil 1."
+1 more matching line
Shore Lurker89%
$0.09↓#24720↓0.00↓0.6 years↓
"When this creature enters, surveil 1."
Sinister Starfish89%
$0.18↑#9367↑0.00↓5.2 years↑
"
: Surveil 1."
: Surveil 1."
Imperious Inkmage89%
$0.05↓#25419↓0.00↓0.4 years↓
"When this creature enters, surveil 2."
Dimir Informant89%
$0.15↓#24240↓0.00↓7.9 years↑
"When this creature enters, surveil 2."
A.I.M. Synthoids89%
$0.11↓#20319↓0.00↓0.2 years↓
"When this creature enters, surveil 2."
Sterling Hound89%
$0.17#17278↓0.072.4 years
"When this creature enters, surveil 2."
Wreckage Wickerfolk88%
$0.21↑#141600.151.6 years
"When this creature enters, surveil 2."
Watcher in the Mist88%
$0.05↓#28012↓0.00↓7.9 years↑
"When this creature enters, surveil 2."
Wretched Doll88%
$0.15↓#21195↓0.181.6 years
", : Surveil 1."
, : Surveil 1."
Underwater Tunnel // Slimy Aquarium88%
$0.18↑#111060.171.9 years
"When you unlock this door, surveil 2."
Barrier of Bones88%
$0.08↓#151500.00↓7.9 years↑
"When this creature enters, surveil 1."
Rune-Sealed Wall88%
$0.21↑#10811↑0.061.8 years
": Surveil 1."
: Surveil 1."
Ultimecia, Time Sorceress // Ultimecia, Omnipotent88%
$0.24↑#111110.30↑1.2 years
"Whenever this card enters or attacks, surveil 2."
Consider88%
$0.29↑#379↑0.114.9 years↑
"Surveil 1."