Equivalent cards to “Karn, Legacy Reforged” (colorless, big mana producers or artifact creatures that ramp):
- “Metalworker” (artifact creature, makes lots of mana)
- “Krark-Clan Ironworks” (artifact, converts artifacts to mana)
- “Forsaken Monument” (artifact, boosts colorless mana production)
- “Hedron Archive” (artifact, mana ramp plus card draw)
- “Dreamstone Hedron” (bigger Hedron Archive)
Reason: All are colorless and provide ramp or similar artifact synergy.
