City of Solitude 

Enchantment
Players can cast spells and activate abilities only during their own turns.
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.
Deafening Silence 88%
$2.03#1946
"Each player can't cast more than one noncreature spell each turn."
Weftwalking 87%
$0.35#14864
"The first spell each player casts during each of their turns may be cast without paying its mana cost."
Ian Malcolm, Chaotician 87%
$6.55#11008
"During each player's turn, that player may cast a spell from among the cards they don't own exiled with this card, and mana of any type can be spent to cast it."
Karn's Sylex 86%
$0.94#13097
"Players can't pay life to cast spells or to activate abilities that aren't mana abilities."
Cornered Market 84%
$0.59#26633
"Players can't cast spells with the same name as a nontoken permanent."
Mana Maze 84%
$4.75#17832
"Players can't cast spells that share a color with the spell most recently cast this turn."
Backdraft 82%
$3.84#28105
"Choose a player who cast one or more sorcery spells this turn. this card deals damage to that player equal to half the damage dealt by one of those sorcery spells this turn, rounded down."
Once Upon a Time 82%
$1.45#8818
"If this spell is the first spell you've cast this game, you may cast it without paying its mana cost."
Fires of Invention 82%
$0.28#14013
"You can cast spells only during your turn and you can cast no more than two spells each turn."