Puncture Bolt
Instant
Puncture Bolt deals 1 damage to target creature. Put a -1/-1 counter on that creature.
standard
future
historic
gladiator
pioneer
modern
legacy
pauper
vintage
penny
commander
brawl
alchemy
paupercommander
duel
oldschool
premodern
Rulings
Puncture Bolt will resolve fully (and give the creature a -1/-1 counter) even if the 1 damage would be enough to destroy it. (This would matter if a 3/3 creature with persist had already been dealt 2 damage, for example.)
If you target a creature with 1 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 0 toughness. The creature will be put into its owner’s graveyard as a result of having 0 toughness. Regeneration can’t save it.
If you target a creature with 2 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 1 toughness. The creature will be destroyed as a result of lethal damage. Regeneration could save it.
If you target a creature with 1 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 0 toughness. The creature will be put into its owner’s graveyard as a result of having 0 toughness. Regeneration can’t save it.
If you target a creature with 2 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 1 toughness. The creature will be destroyed as a result of lethal damage. Regeneration could save it.
Rulings
Puncture Bolt will resolve fully (and give the creature a -1/-1 counter) even if the 1 damage would be enough to destroy it. (This would matter if a 3/3 creature with persist had already been dealt 2 damage, for example.)
If you target a creature with 1 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 0 toughness. The creature will be put into its owner’s graveyard as a result of having 0 toughness. Regeneration can’t save it.
If you target a creature with 2 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 1 toughness. The creature will be destroyed as a result of lethal damage. Regeneration could save it.
If you target a creature with 1 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 0 toughness. The creature will be put into its owner’s graveyard as a result of having 0 toughness. Regeneration can’t save it.
If you target a creature with 2 toughness, Puncture Bolt deals 1 damage to it, then puts a -1/-1 counter on it, which reduces it to 1 toughness. The creature will be destroyed as a result of lethal damage. Regeneration could save it.
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