Fatal Blow

{B} · Instant

Destroy target creature that was dealt damage this turn. It can't be regenerated.

Motor: se resuelve a mano

Rulings (2)

Fatal Blow can’t target a creature that hasn’t been dealt damage this turn.
Wizards of the Coast · 2008-04-01
Fatal Blow cares whether the creature had been dealt damage during the turn, not whether there is still damage on it. If the creature had regenerated, causing all damage to clear, Fatal Blow can still target and destroy it.
Wizards of the Coast · 2008-04-01