Harsh Justice {2}{W}
Instant
Cast this spell only during the declare attackers step and only if you've been attacked this step.
This turn, whenever an attacking creature deals combat damage to you, it deals that much damage to its controller.
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Cards that do something similar expected a card that isn't here?
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Edric, Spymaster of Trest 85%
$2.43#3442
"Whenever a creature deals combat damage to one of your opponents, its controller may draw a card."
Tahngarth, First Mate 80%
$0.23#15357
"Whenever an opponent attacks with one or more creatures, if this card is tapped, you may have that opponent gain control of this card until end of combat. If you do, choose a player or planeswalker that opponent is attacking. this card is attacking that player or planeswalker."
Hardened Berserker 84%
$0.03#23580
"Whenever this creature attacks, the next spell you cast this turn costs {1} less to cast."
Goblin Maskmaker 81%
$0.11#21018
"Whenever this creature attacks, face-down spells you cast this turn cost {1} less to cast."