Format legality
- –standardNot legal
- ✓pioneerLegal
- ✓modernLegal
- ✓legacyLegal
- ✓vintageLegal
- ✓commanderLegal
- –pauperNot legal
- ✓brawlLegal
Karn, Legacy Reforged
Legendary Artifact Creature: Golem - March of the Machine: The Aftermath #49 - Mythic - (EN)
Karn's power and toughness are each equal to the greatest mana value among artifacts you control.
At the beginning of your upkeep, add 
for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.
for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.Loading market prices…
Format legality
- –standardNot legal
- ✓pioneerLegal
- ✓modernLegal
- ✓legacyLegal
- ✓vintageLegal
- ✓commanderLegal
- –pauperNot legal
- ✓brawlLegal