Powerstones being used for non artifacts
When playing colorless planeswalkers, the powerstones will let me use their mana to cast the planeswalkers.
2
votes
dan.musicman#73890
shared this idea
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[Deleted User] commented
The Powerstones are being used to activate the Cascading Cataracts.
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dan.musicman#73890 commented
The attached screenshot shows that I was able to use powerstones to cast planeswalkers.