Web of Inertia 

Enchantment
At the beginning of combat on each opponent's turn, that player may exile a card from their graveyard. If the player doesn't, creatures they control can't attack you this turn.
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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.
Champions of Minas Tirith 89%
$0.32#5273
"At the beginning of combat on each opponent's turn, if you're the monarch, that opponent may pay {X}, where X is the number of cards in their hand. If they don't, they can't attack you this combat."
Kratos, God of War 85%
$53.91#6533
"At the beginning of each player's end step, this card deals damage to that player equal to the number of creatures that player controls that didn't attack this turn."
Angelic Arbiter 85%
$4.93#5000
"Each opponent who cast a spell this turn can't attack with creatures."
Overencumbered 85%
$0.34#10579
"At the beginning of combat on enchanted opponent's turn, that player may pay {1} for each artifact they control. If they don't, creatures can't attack this combat."
Halls of Mist 84%
$3.40#19884
"Creatures that attacked during their controller's last turn can't attack."
Alexios, Deimos of Kosmos 84%
$0.54#1245
"this card attacks each combat if able, can't be sacrificed, and can't attack its owner."
Shauku, Endbringer 84%
$2.34#20586
"this card can't attack if there's another creature on the battlefield."
Akron Legionnaire 83%
#28174
"Except for creatures named this card and artifact creatures, creatures you control can't attack."
Total War 83%
$2.49#19506
"Whenever a player attacks with one or more creatures, destroy all untapped non-Wall creatures that player controls that didn't attack, except for creatures the player hasn't controlled continuously since the beginning of the turn."
Forbidding Spirit 83%
$0.16#15834
"When this creature enters, until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures."
Arboria 83%
$0.30#17788
"Creatures can't attack a player unless that player cast a spell or put a nontoken permanent onto the battlefield during their last turn."
Xantcha, Sleeper Agent 83%
$1.41#3008
"this card attacks each combat if able and can't attack its owner or planeswalkers its owner controls."
Unstable Glyphbridge // Sandswirl Wanderglyph 82%
$0.29#8137
"Whenever an opponent casts a spell during their turn, they can't attack you or planeswalkers you control this turn."
Willie Lumpkin, Postman 82%
$1.35#18200
"Whenever this card deals combat damage to an opponent, you draw a card and that player may draw a card. If they do, that player can't attack you or permanents you control during their next turn."
Reclamation 81%
$0.62#27185
"Black creatures can't attack unless their controller sacrifices a land of their choice for each black creature they control that's attacking."
Chaos Dragon 81%
$5.30#3849
"At the beginning of combat on your turn, each player rolls a d20. If one or more opponents had the highest result, this creature can't attack those players or planeswalkers they control this combat."