Council of the Absolute 
Creature — Human Advisor
$0.31 #24466 0.53 13.5 years
As this creature enters, choose a noncreature, nonland card name.
Your opponents can't cast spells with the chosen name.
Spells with the chosen name you cast cost less to cast.
less to cast.Click a line or tag to filter
Cards similar to Council of the Absolute 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.
Alhammarret, High Arbiter96%
$0.33↑#18603↑0.6011.3 years↓
"Your opponents can't cast spells with the chosen name ."
+1 more matching line
Nevermore94%
$2.03↑#14725↑1.25↑15.1 years↑
"As this enchantment enters, choose a nonland card name."
+1 more matching line
Voidstone Gargoyle91%
$0.26↓#277910.80↑19.7 years↑
"As this creature enters, choose a nonland card name."
+1 more matching line
Null Chamber90%
$1.66↑#260410.78↑30.0 years↑
"Spells with the chosen names can't be cast and lands with the chosen names can't be played."
+1 more matching line
Gideon's Intervention90%
$0.26↓#208830.94↑9.5 years↓
"Your opponents can't cast spells with the chosen name."
+1 more matching line
Meddling Mage88%
$1.46↑#18066↑1.00↑25.7 years↑
"As this creature enters, choose a nonland card name."
+1 more matching line
Academic Probation84%
$0.18↓#247750.33↓5.5 years↓
"• Choose a nonland card name. Opponents can't cast spells with the chosen name until your next turn."
Conjurer's Ban82%
$0.24↓#289110.35↓20.7 years↑
"Choose a card name. Until your next turn, spells with the chosen name can't be cast and lands with the chosen name can't be played."
Failure // Comply82%
$0.30↓#218790.27↓9.5 years↓
"Choose a card name. Until your next turn, your opponents can't cast spells with the chosen name."
Stone Calendar79%
$14.91↑#205420.37↓32.2 years↑
"Spells you cast cost 
less to cast."
less to cast."
Helm of Awakening77%
$1.61↑#1927↑0.32↓29.7 years↑
"Spells cost less to cast."
less to cast."
Cheering Fanatic74%
$0.12↓#202150.00↓8.4 years↓
"Whenever this creature attacks, choose a card name. Spells with the chosen name cost less to cast this turn."
less to cast this turn."
Spellwild Ouphe72%
$0.29↓#16690↑0.09↓19.5 years↑
"Spells that target this creature cost less to cast."
less to cast."
Memory Crystal70%
$2.23↑#240890.19↓28.3 years↑
"Buyback costs cost less."
less."