Kadena, Slinking Sorcerer 
Legendary Creature — Snake Wizard Sorcerer
$0.39 #12052 0.41 7.0 years
The first face-down creature spell you cast each turn costs 
less to cast.
less to cast.Whenever a face-down creature you control enters, draw a card.
Click a line or tag to filter
Cards similar to Kadena, Slinking Sorcerer 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.
Dream Chisel94%
$3.84↑#135660.14↓23.9 years↑
"Face-down creature spells you cast cost less to cast."
less to cast."
They Came from the Pipes90%
$0.33↓#5534↑0.331.9 years↓
"Whenever a face-down creature you control enters, draw a card."
Obscuring Aether88%
$0.17↓#111320.12↓11.4 years↑
"Face-down creature spells you cast cost less to cast."
less to cast."
Goblin Maskmaker86%
$0.04↓#21472↓0.25↓2.6 years↓
"Whenever this creature attacks, face-down spells you cast this turn cost less to cast."
less to cast."
Panoptic Projektor84%
$0.30↓#9031↑0.62↑2.6 years↓
"
: The next face-down creature spell you cast this turn costs less to cast."
: The next face-down creature spell you cast this turn costs less to cast."
Soul of the Harvest81%
$1.22↑#1634↑0.24↓14.3 years↑
"Whenever another nontoken creature you control enters, you may draw a card."
Secret Plans76%
$0.20↓#8656↑0.4411.9 years↑
"Whenever a permanent you control is turned face up, draw a card."
+1 more matching line
The Blue Spirit74%
$0.88↑#7467↑0.00↓0.8 years↓
"Whenever a nontoken creature you control enters during combat, draw a card."
Tocasia's Welcome74%
$0.81↑#828↑0.20↓3.8 years↓
"Whenever one or more creatures you control with mana value 3 or less enter, draw a card. This ability triggers only once each turn."
Huatli, Radiant Champion74%
$3.45↑#9405↑0.368.6 years↑
"−8: You get an emblem with "Whenever a creature you control enters, you may draw a card.""
Oblivious Bookworm74%
$0.18↓#127050.11↓1.9 years↓
"At the beginning of your end step, you may draw a card. If you do, discard a card unless a permanent entered the battlefield face down under your control this turn or you turned a permanent face up this turn."
Kaust, Eyes of the Glade73%
$0.22↓#16749↓0.06↓2.6 years↓
"Whenever a creature you control that was turned face up this turn deals combat damage to a player, draw a card."
+1 more matching line
Garruk's Packleader73%
$0.14↓#2023↑0.18↓16.1 years↑
"Whenever another creature you control with power 3 or greater enters, you may draw a card."
Elemental Bond72%
$3.05↑#560↑0.25↓11.1 years↑
"Whenever a creature you control with power 3 or greater enters, draw a card."
Yarus, Roar of the Old Gods72%
$0.18↓#118620.18↓2.6 years↓
"Whenever one or more face-down creatures you control deal combat damage to a player, draw a card."
Welcoming Vampire72%
$1.94↑#424↑0.22↓4.8 years↓
"Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn."
Aphetto Runecaster71%
$0.33↓#16064↓0.3823.3 years↑
"Whenever a permanent is turned face up, you may draw a card."
Tunnel Tipster71%
$0.20↓#15499↓0.19↓2.6 years↓
"At the beginning of your end step, if a face-down creature entered the battlefield under your control this turn, put a +1/+1 counter on this creature."
Gladewalker Ritualist70%
$0.22↓#20876↓0.25↓5.6 years↓
"Whenever another creature you control named this card enters, draw a card."
Arcades, the Strategist70%
$3.46↑#5810↑0.82↑8.1 years↑
"Whenever a creature you control with defender enters, draw a card."