Halls of Mist
Land
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Creatures that attacked during their controller's last turn can't attack.
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Cards that do something similar expected a card that isn't here?
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Chronomantic Escape 85%
$2.93#11955
"Until your next turn, creatures can't attack you. Exile this card with three time counters on it."
Web of Inertia 84%
$0.75#11836
"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."
Summon: Yojimbo 84%
$1.48#2528
"Until your next turn, creatures can't attack you unless their controller pays {2} for each of those creatures."
Akron Legionnaire 84%
#28174
"Except for creatures named this card and artifact creatures, creatures you control can't attack."
Angelic Arbiter 84%
$4.93#5000
"Each opponent who cast a spell this turn can't attack with creatures."
Champions of Minas Tirith 84%
$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."
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."
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."
Kratos, God of War 82%
$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."
Season of the Witch 81%
$24.21#20160
"At the beginning of the end step, destroy all untapped creatures that didn't attack this turn, except for creatures that couldn't attack."
Siren's Call 81%
$0.19#21554
"At the beginning of the next end step, destroy all non-Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn."
Overencumbered 81%
$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."
Alexios, Deimos of Kosmos 81%
$0.54#1245
"this card attacks each combat if able, can't be sacrificed, and can't attack its owner."
Shauku, Endbringer 80%
$2.34#20586
"this card can't attack if there's another creature on the battlefield."
Reclamation 80%
$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."
Peace Talks 80%
$0.28#26917
"This turn and next turn, creatures can't attack, and players and permanents can't be the targets of spells or activated abilities."
Nils, Discipline Enforcer 80%
$0.25#4012
"Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays {X}, where X is the number of counters on that creature."