Mystery Booster Commander: Dyfed, the Guiding Hand

[+1]: Create two tapped Powerstone tokens. (They're artifacts with ": Add . This mana can't be spent to cast a nonartifact spell.")
[-X]: Untap X target artifacts.
[-6]: Search your library for an artifact card, put it onto the battlefield, then shuffle.
Dyfed, the Guiding Hand can be your commander.
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