Centaur Omenreader 
Snow Creature — Centaur Shaman
$0.35 #15992 0.28 19.5 years
As long as this creature is tapped, creature spells you cast cost 
less to cast.
less to cast.Click a line or tag to filter
Cards similar to Centaur Omenreader 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.
Planar Gate84%
$74.69↑#21434↓0.3832.4 years↑
"Creature spells you cast cost less to cast."
less to cast."
Shrewd Storyteller78%
$0.12↓#179960.07↓2.1 years↓
"At the beginning of your second main phase, if this creature is tapped, put a +1/+1 counter on target creature."
Cautious Survivor78%
$0.11↓#19843↓0.00↓2.1 years↓
"At the beginning of your second main phase, if this creature is tapped, you gain 2 life."
Honest Rutstein77%
$0.38↑#1855↑0.16↓2.5 years↓
"Creature spells you cast cost 
less to cast."
less to cast."
Heartless Summoning75%
$1.63↑#2677↑0.3715.1 years↓
"Creature spells you cast cost less to cast."
less to cast."
Quicksilver, Speedster75%
$0.26↓#161450.51↑0.3 years↓
"As long as this card is tapped, you may cast spells as though they had flash."
Mirri, Weatherlight Duelist74%
$5.56↑#2688↑0.68↑9.2 years↓
"As long as this card is tapped, no more than one creature can attack you each combat."
Marauding Raptor74%
$0.85↑#3049↑0.197.3 years↓
"Creature spells you cast cost less to cast."
less to cast."
Warden of Evos Isle73%
$0.18↓#3779↑0.04↓13.3 years↓
"Creature spells with flying you cast cost less to cast."
less to cast."
The Sibsig Ceremony72%
$0.35#8842↑0.12↓1.5 years↓
"Creature spells you cast cost less to cast."
less to cast."
Shadow in the Warp72%
$16.28↑#3603↑0.45↑4.0 years↓
"The first creature spell you cast each turn costs less to cast."
less to cast."
Herald's Horn72%
$2.80↑#151↑0.249.2 years↓
"Creature spells you cast of the chosen type cost less to cast."
less to cast."
Urza's Incubator72%
$20.34↑#311↑0.62↑27.4 years↑
"Creature spells of the chosen type cost less to cast."
less to cast."
Watcher of the Spheres70%
$0.63↑#4274↑0.03↓6.3 years↓
"Creature spells with flying you cast cost less to cast."
less to cast."
Radagast of Rhosgobel70%
$2.37↑#4221↑0.51↑0.2 years↓
"The first creature spell you cast each turn costs less to cast and can be cast as though it had flash."
less to cast and can be cast as though it had flash."
Duskwatch Recruiter // Krallenhorde Howler70%
$0.32↓#5988↑0.2110.5 years↓
"Creature spells you cast cost less to cast."
less to cast."
Tombstone, Career Criminal70%
$0.21↓#6307↑0.00↓1.1 years↓
"Villain spells you cast cost less to cast."
less to cast."