I believe Powerstones are very strong and will be strong in Commander decks that support them.

After playing in the prerelease, I played a UR powerstone deck with a decent amount of powerstone generation, and the amount they ramp you is pretty nuts. Granted, the mana is only usable on artifact spells and other, random activated abilities. But, in these decks, it seems really insane. Especially the cards that can easily generate powerstone tokens, like [[Urza, Powerstone Prodigy]]. Or ones that create multiple tokens [[Great Desert Prospector]] and [[Terisiare's Devastation]]. https://xender.vip/

And I think they hold potential in not just artifact decks but if your commander has an activated ability with a good amount of colorless mana required to activate it, can be good. Also lands, so many lands have abilities that are good, but mana intensive, like [[Arch of Orazca]]. They can also pay for upkeep costs like [[Mystic Remora]].

What do you think? What were your experiences playing with them in limited? Did they seem clunky or powerful?