Rock Blaster

Destroy target noncreature permanent. That permanent's controller creates a number of Smithing Stone tokens equal to it's mana value.

(They are artifacts with "{t}, Sacrifice this token:
Put a +1/+1 counter on a creature you control)

"The ever-working miners of the tunnels, tasked with harvesting crystals from deep beneath. Their staff allows them to summon a drill to shatter rock and enemies alike."