Executioner's Swing
Instant
Target creature that dealt damage this turn gets -5/-5 until end of turn.
"The contract specified an appendage for a missed payment. Read the fine print: the head is an appendage."
Karl Kopinski
Gatecrash (GTC)
• #161Rulings
It doesn’t matter what the creature dealt damage to or if that damage was combat damage.
(wotc • 2013-01-24)
You can’t choose a creature that hasn’t yet dealt damage during the turn as the target of Executioner’s Swing, so in most cases it’s not possible for Executioner’s Swing to reduce the amount of combat damage a creature deals. (If a creature has double strike, you could cast Executioner’s Swing after it deals first-strike damage but before it deals regular combat damage.)
(wotc • 2013-01-24)
Rulings
It doesn’t matter what the creature dealt damage to or if that damage was combat damage.
(wotc • 2013-01-24)
You can’t choose a creature that hasn’t yet dealt damage during the turn as the target of Executioner’s Swing, so in most cases it’s not possible for Executioner’s Swing to reduce the amount of combat damage a creature deals. (If a creature has double strike, you could cast Executioner’s Swing after it deals first-strike damage but before it deals regular combat damage.)
(wotc • 2013-01-24)