Stone Retrieval UnitCasting Cost: {4}Card Type: Artifact Creature - ConstructPower/Toughness: 2/3Card Text: When Stone Retrieval Unit enters the battlefield, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.)Flavour Text: Automatons could be rebuilt. Powerstones could not.Artist: Andreas Zafiratos
: Add 
. This mana can't be spent to cast a nonartifact spell.)