Wither (This deals damage to creatures in the form of -1/-1 counters.)
Puncture Blast deals 3 damage to any target.
This is the only instant or sorcery spell that has wither. It works like anything else with wither: If it deals damage to a creature, the damage results in -1/-1 counters; if it deals damage to a player or planeswalker, the damage behaves normally.