You can put +1/+1 counters on a noncreature artifact. They won't do anything unless the artifact becomes a creature, at which time they'll add to the creature's power and toughness.
Dismantle
If the target artifact is an illegal target by the time Dismantle tries to resolve, the spell won't resolve. You won't put any counters on an artifact. If the target is legal but not destroyed (most likely because it has indestructible), you do put counters on an artifact.
It doesn't matter what kind of counters the destroyed artifact had on it, only how many. If an artifact had five fuse counters and two trap counters on it, you put seven +1/+1 counters or seven charge counters on an artifact.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Brian Snõddy
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