Sapphire Medallion 
Artifact
$7.87 #354 0.34 29.0 years
Blue spells you cast cost 
less to cast.
less to cast.Click a line or tag to filter
Cards similar to Sapphire Medallion 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.
Grand Arbiter Augustin IV92%
$18.23↑#1808↓2.76↑20.5 years↓
"Blue spells you cast cost less to cast."
less to cast."
The Water Crystal92%
$3.59↓#1473↓0.78↑1.4 years↓
"Blue spells you cast cost less to cast."
less to cast."
Nightscape Familiar91%
$0.42↓#1159↓0.12↓25.7 years↓
"Blue spells and red spells you cast cost less to cast."
less to cast."
Sunscape Familiar90%
$1.32↓#6171↓0.00↓25.7 years↓
"Green spells and blue spells you cast cost less to cast."
less to cast."
Kefnet's Monument86%
$0.38↓#5045↓0.47↑9.5 years↓
"Blue creature spells you cast cost less to cast."
less to cast."
Stone Calendar85%
$14.91↑#20542↓0.3732.2 years↑
"Spells you cast cost less to cast."
less to cast."
Memory Crystal81%
$2.23↓#24089↓0.19↓28.3 years
"Buyback costs cost less."
less."
Gearsmith Guardian81%
$0.06↓#29413↓0.00↓8.3 years↓
"This creature gets +2/+0 as long as you control a blue creature."
Briarberry Cohort80%
$0.18↓#26287↓0.05↓18.5 years↓
"This creature gets +1/+1 as long as you control another blue creature."
Defiler of Dreams78%
$0.59↓#4360↓0.18↓4.1 years↓
"As an additional cost to cast blue permanent spells, you may pay 2 life. Those spells cost 
less to cast if you paid life this way. This effect reduces only the amount of blue mana you pay."
less to cast if you paid life this way. This effect reduces only the amount of blue mana you pay."
Will, Scion of Peace78%
$0.88↓#5933↓0.293.1 years↓
"
: Spells you cast this turn that are white and/or blue cost 
less to cast, where X is the amount of life you gained this turn. Activate only as a sorcery."
: Spells you cast this turn that are white and/or blue cost less to cast, where X is the amount of life you gained this turn. Activate only as a sorcery."
Helm of Awakening76%
$1.61↓#1927↓0.3229.7 years
"Spells cost less to cast."
less to cast."
Jet Medallion76%
$13.42↑#274↑0.2729.0 years
"Black spells you cast cost less to cast."
less to cast."
Pearl Medallion76%
$7.43↓#429↓0.19↓29.0 years
"White spells you cast cost less to cast."
less to cast."
Ruby Medallion75%
$14.07↑#2930.2829.0 years
"Red spells you cast cost less to cast."
less to cast."
Raging Battle Mouse74%
$0.22↓#12427↓0.00↓3.1 years↓
"The second spell you cast each turn costs less to cast."
less to cast."
Uthros Psionicist74%
$0.22↓#9584↓0.22↓1.2 years↓
"The second spell you cast each turn costs less to cast."
less to cast."
Minotaur Tactician74%
$0.06↓#32131↓0.00↓25.4 years↓
"This creature gets +1/+1 as long as you control a blue creature."
Herald of Kozilek74%
$0.36↓#6409↓0.2911.0 years↓
"Colorless spells you cast cost less to cast."
less to cast."
Highspire Bell-Ringer74%
$0.16↓#10943↓0.00↓1.5 years↓
"The second spell you cast each turn costs less to cast."
less to cast."