Electric Seaweed from the hard-as-nails NES game makes an appearance to strike fear into gamers of a certain age, while other cards reference the squads love of arcade machines, like High Score and, uh, Arcade Cabinet
The "Filter Lands" from Shadowmoor and Eventide represents a period in Magic's history when the mana was absolutely incredible
Counterfeits tend to circulate through: sketchy websites underground forums marketplace listings with vague language and low-quality photos private deals where buyers are pressured to act fast This is exactly why its risky
You can also get this mana from artifacts that used to generate generic mana and got erratad like Plague Myr
A handful of brands are well-known among paper Magic-ers, whether for good or for ill
If this sounds like you get to watch someone play MTG while you sit there and not do that, that's because it's exactly what happens