Unshakable Tail 
Creature — Zombie Detective
$0.31 #7691 0.25 2.6 years
When this creature enters and at the beginning of your upkeep, surveil 1.
Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
, Sacrifice this token: Draw a card."), Sacrifice a Clue: Return this card from your graveyard to your hand.Click a line or tag to filter
Cards similar to Unshakable Tail 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.
Master of Death82%
$0.28↓#71380.44↑5.3 years↑
"When this creature enters, surveil 2."
+1 more matching line
Purple Pentapus82%
$0.14↓#16971↓0.00↓0.8 years↓
"When this creature enters, surveil 1."
Sanitation Automaton82%
$0.08↓#22325↓0.182.6 years
"When this creature enters, surveil 1."
Whisper Agent82%
$0.07↓#23860↓0.43↑7.9 years↑
"When this creature enters, surveil 1."
A.I.M. Synthoids82%
$0.11↓#20319↓0.00↓0.2 years↓
"When this creature enters, surveil 2."
Sterling Hound82%
$0.17↓#17278↓0.07↓2.4 years
"When this creature enters, surveil 2."
Dimir Informant82%
$0.15↓#24240↓0.00↓7.9 years↑
"When this creature enters, surveil 2."
Imperious Inkmage82%
$0.05↓#25419↓0.00↓0.4 years↓
"When this creature enters, surveil 2."
Shore Lurker81%
$0.09↓#24720↓0.00↓0.6 years↓
"When this creature enters, surveil 1."
Watcher in the Mist81%
$0.05↓#28012↓0.00↓7.9 years↑
"When this creature enters, surveil 2."
Wreckage Wickerfolk81%
$0.21↓#14160↓0.15↓1.6 years↓
"When this creature enters, surveil 2."
Ulvenwald Mysteries80%
$0.11↓#76760.00↓10.4 years↑
"Whenever a nontoken creature you control dies, investigate."
+1 more matching line
Barrier of Bones80%
$0.08↓#15150↓0.00↓7.9 years↑
"When this creature enters, surveil 1."
Curious Cadaver80%
$0.08↓#27254↓0.00↓2.6 years
"When you sacrifice a Clue, return this card from your graveyard to your hand."
Dogged Detective80%
$0.23↓#69770.00↓4.4 years↑
"When this creature enters, surveil 2."
Underwater Tunnel // Slimy Aquarium79%
$0.18↓#11106↓0.171.9 years
"When you unlock this door, surveil 2."
Rubblebelt Maverick79%
$0.23↓#18367↓0.00↓2.6 years
"When this creature enters, surveil 2."
Faerie Dreamthief78%
$0.34↑#64980.00↓3.0 years
"When this creature enters, surveil 1."
Cenote Scout78%
$0.24↓#11569↓0.00↓2.8 years
"When this creature enters, it explores."
Sunrise Seeker78%
$0.05↓#29882↓0.298.9 years↑
"When this creature enters, it explores."