Lethargy Trap 

Instant — Trap
$0.07 #25071 0.06 16.9 years
If three or more creatures are attacking, you may pay
rather than pay this spell's mana cost.
Attacking creatures get -3/-0 until end of turn.
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Cards similar to Lethargy Trap expected a card that isn't here?
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"Whenever a creature attacks you, it gets -1/-0 until end of turn."
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"Whenever one or more creatures attack you, those creatures get -1/-0 until end of turn."
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"As long as this creature is untapped, all creatures attacking you get -1/-0."
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$0.06↓#282900.29↑14.9 years↓
"Creatures your opponents control get -4/-0 until end of turn."
Turn the Tide88%
$0.06↓#290180.53↑15.6 years↓
"Creatures your opponents control get -2/-0 until end of turn."
Blinding Spray86%
$0.04↓#270530.0011.9 years↓
"Creatures your opponents control get -4/-0 until end of turn."
Uncomfortable Chill86%
$0.04↓#248560.008.1 years↓
"Creatures your opponents control get -2/-0 until end of turn."
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"Creatures your opponents control get -2/-0 until end of turn."
Beyeen Veil // Beyeen Coast84%
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"Creatures your opponents control get -2/-0 until end of turn."