Astral Confrontation {4}{W}
Instant
This spell costs {1} less to cast for each opponent you're attacking.
Exile target creature.
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Cards that do something similar expected a card that isn't here?
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Fast Forward 91%
$0.36#9862
"This spell costs {1} less to cast for each opponent you attacked this turn."
Gnoll War Band 89%
$0.24#12487
"This spell costs {1} less to cast for each opponent who was dealt damage this turn."
Siren's Call 86%
$0.19#21554
"Cast this spell only during an opponent's turn, before attackers are declared."
Teferi, Time Raveler 86%
$7.25#1139
"Each opponent can cast spells only any time they could cast a sorcery."
Teferi, Mage of Zhalfir 86%
$3.05#4358
"Each opponent can cast spells only any time they could cast a sorcery."
Chandra's Incinerator 82%
$3.07#2569
"This spell costs {X} less to cast, where X is the total amount of noncombat damage dealt to your opponents this turn."
Delightful Discovery 81%
$0.27#15894
"This spell costs {1} less to cast for each spell your opponents have cast this turn."
Inventive Iteration // Living Breakthrough 81%
$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."
Megatron, Tyrant // Megatron, Destructive Force 80%
$2.08#11410
"Your opponents can't cast spells during combat."