No Mercy 
Enchantment
$10.42 #1470 1.12 27.6 years
Whenever a creature deals damage to you, destroy it.
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Cards similar to No Mercy expected a card that isn't here?
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Dread96%
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"Whenever a creature deals damage to you, destroy it."
Teysa, Envoy of Ghosts90%
$0.60↓#6568↓0.59↓13.3 years↓
"Whenever a creature deals combat damage to you, destroy that creature. Create a 1/1 white and black Spirit creature token with flying."
Mikaeus, the Unhallowed76%
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"Whenever a Human deals damage to you, destroy it."
Giltspire Avenger73%
$0.78↓#15749↓0.08↓17.6 years↓
"
: Destroy target creature that dealt damage to you this turn."
: Destroy target creature that dealt damage to you this turn."
Spear of Heliod73%
$1.13↓#5300↓0.24↓12.9 years↓
"
, : Destroy target creature that dealt damage to you this turn."
, : Destroy target creature that dealt damage to you this turn."
Red Guardian, Super-Soldier72%
$0.21↓#23416↓0.00↓0.2 years↓
"When this card enters, destroy target creature an opponent controls that dealt damage this turn."
Avenging Arrow70%
$0.05↓#22180↓0.22↓13.9 years↓
"Destroy target creature that dealt damage this turn."
Retaliate70%
$0.59↓#23848↓0.47↓22.3 years↓
"Destroy all creatures that dealt damage to you this turn."