Even a fragment of a powerstone contains within it not just energy, but space—vast dimensions trapped in fragile crystal.

Worn Powerstone

Worn Powerstone enters tapped.
{T}: Add {C}{C}.

Modern Horizons 3

Worn Powerstone enters the battlefield tapped.
{T}: Add {C}{C}.

"The strange energy source isn't cosmium after all, but some unidentifiable material that has leached cosmium residue from the walls. Could be dangerous. Could change everything."
—Oltec archaeological survey

The Lost Caverns of Ixalan Commander

Commander Masters

Historic Anthology 7

"The *palantíri* of the Kings of Old: the name meant 'that which looks far away.' The Orthanc-stone was one, and it is beyond Saruman's art."
—Gandalf