Gideon's Intervention 


Enchantment
As this enchantment enters, choose a card name.
Your opponents can't cast spells with the chosen name.
Prevent all damage that would be dealt to you and permanents you control by sources with the chosen name.
click a line to search just that ability, click more to combine them
Cards that do something similar 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.
Council of the Absolute 100%
$0.31#23991
"Your opponents can't cast spells with the chosen name."
+1 more matching line
Alhammarret, High Arbiter 100%
$0.22#19530
"Your opponents can't cast spells with the chosen name ."
Megatron, Tyrant // Megatron, Destructive Force 90%
$2.08#11410
"Your opponents can't cast spells during combat."
Jennifer Walters // The Sensational She-Hulk 89%
$14.40#12167
"Your opponents can't cast spells during your turn."
Teferi, Time Raveler 89%
$7.25#1139
"Each opponent can cast spells only any time they could cast a sorcery."
Teferi, Mage of Zhalfir 89%
$3.05#4358
"Each opponent can cast spells only any time they could cast a sorcery."
Drannith Magistrate 87%
$14.78#698
"Your opponents can't cast spells from anywhere other than their hands."
Inventive Iteration // Living Breakthrough 86%
$0.30#9276
"Whenever you cast a spell, your opponents can't cast spells with the same mana value as that spell until your next turn."