Powerstone Minelayer

Prototype (You may cast this spell {2}{r}
with different mana cost, color, and -------
size. It keeps its abilities and types.) | 1/3|
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When Powerstone Minelayer enters the battlefield, if you cast it, create a number of
tapped Powerstone tokens equal to its power.
Powerstones you control have "{r}, Sacrifice this artifact: This artifact deals 2 damage to target
attacking or blocking cr