name=Catalyst Stone
image=https://magiccards.info/scans/en/od/297.jpg
value=3.902
rarity=R
type=Artifact
cost={2}
ability=Flashback costs you pay cost up to {2} less.;\
        Flashback costs your opponents pay cost {2} more.
timing=artifact
oracle=Flashback costs you pay cost up to {2} less.\nFlashback costs your opponents pay cost {2} more.
status=not supported: complex-cost-modification
