Festival {W}
Instant
Cast this spell only during an opponent's upkeep.
Creatures can't attack this turn.
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Cards that do something similar expected a card that isn't here?
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Teferi, Time Raveler 85%
$7.25#1139
"Each opponent can cast spells only any time they could cast a sorcery."
Teferi, Mage of Zhalfir 85%
$3.05#4358
"Each opponent can cast spells only any time they could cast a sorcery."
Siren's Call 85%
$0.19#21554
"Cast this spell only during an opponent's turn, before attackers are declared."
+1 more matching line
Peace Talks 84%
$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."
Inventive Iteration // Living Breakthrough 83%
$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."
Collective Restraint 82%
$14.61#6738
"Creatures can't attack you unless their controller pays {X} for each creature they control that's attacking you, where X is the number of basic land types among lands you control."
Chronomantic Escape 82%
$2.93#11955
"Until your next turn, creatures can't attack you. Exile this card with three time counters on it."
Angelic Arbiter 82%
$4.93#5000
"Each opponent who cast a spell this turn can't attack with creatures."
+1 more matching line
Arboria 82%
$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."
Ghostly Prison 81%
$4.56#161
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."
Koskun Falls 81%
$15.68#10792
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."
Windborn Muse 81%
$0.72#1011
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."