Urza, Lord Protector 
Legendary Creature — Human Artificer
$10.06 #5843 0.50 3.8 years
Artifact, instant, and sorcery spells you cast cost less to cast.
less to cast.
: If you both own and control Urza, Lord Protector and an artifact named The Mightstone and Weakstone, exile them, then meld them into Urza, Planeswalker. Activate only as a sorcery.Click a line or tag to filter
Cards similar to Urza, Lord Protector 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.
Goblin Electromancer92%
$0.21↓#661↑0.26↓14.0 years↑
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Mocking Sprite91%
$0.18↓#2866↑0.16↓3.0 years
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Storm Skreelix90%
$0.17↓#18105↓0.18↓4.9 years↑
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Arcane Melee90%
$0.35↓#11492↓0.30↓14.3 years↑
"Instant and sorcery spells cost 
less to cast."
less to cast."
Stormcatch Mentor88%
$0.33↓#943↑0.24↓2.1 years↓
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Archmage of Runes88%
$3.31↓#954↑0.31↓1.8 years↓
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Jace's Sanctum87%
$0.58↓#4173↑0.34↓11.1 years↑
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Haughty Djinn85%
$0.33↓#2496↑0.19↓4.0 years
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Curious Homunculus // Voracious Reader84%
$0.33↓#9470↓0.29↓10.1 years↑
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Voyager Quickwelder84%
$0.33↓#2713↑0.09↓1.6 years↓
"Artifact spells you cast cost less to cast."
less to cast."
Foundry Inspector84%
$0.39↓#252↑0.27↓9.9 years↑
"Artifact spells you cast cost less to cast."
less to cast."
Etherium Sculptor84%
$0.82↓#419↑0.26↓17.9 years↑
"Artifact spells you cast cost less to cast."
less to cast."
Enthusiastic Mechanaut84%
$0.29↓#1389↑0.24↓4.5 years
"Artifact spells you cast cost less to cast."
less to cast."
Mindsplice Apparatus83%
$1.39↓#2913↑0.32↓3.6 years
"Instant and sorcery spells you cast cost less to cast for each oil counter on this artifact."
less to cast for each oil counter on this artifact."
Mizzix of the Izmagnus82%
$0.70↓#63040.77↑10.8 years↑
"Instant and sorcery spells you cast cost less to cast for each experience counter you have."
less to cast for each experience counter you have."
Case of the Ransacked Lab82%
$0.47↓#2746↑0.27↓2.6 years↓
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Baral, Chief of Compliance82%
$3.36↓#1324↑1.06↑9.6 years↑
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Dirgur Focusmage // Braingeyser81%
$0.28↓#9532↓0.30↓0.4 years↓
"Instant and sorcery spells you cast cost less to cast."
less to cast."
Spectacle Mage81%
$0.15↓#20964↓0.25↓5.4 years↑
"Instant and sorcery spells you cast with mana value 5 or greater cost less to cast."
less to cast."
Melek, Reforged Researcher80%
$0.54↓#12369↓0.29↓2.6 years↓
"The first instant or sorcery spell you cast each turn costs 
less to cast."
less to cast."