Cards that look like bad cards from the past can be the biggest sleeper hits, especially if theyve been aggressively costed
There's a few other very good proliferate engines, such as Contagion Engine, Thrummingbird, and Guildpact Informant for repeatable proliferate, and Tezzeret's Gambit, Vivisurgeon's Insight, Contentious Plan, and Steady Progress adding proliferate to card draw which is great to have
Legality depends on the tournament format -- Mm'menon, the Right Hand can be legal in some formats and banned or restricted in others
There are even a few listings that are asking $40k+ for the card
Early Days Collection, Yugioh Worldwide Edition: Stairway to the Destined Duel Hardcore gaming enthusiast, cosplayer, streamer, Tall Anime lover (6ft 9), and a die-hard competitor
only preventing combat damage from your opponents creatures means you can make many favorable blocks, and so few people play Fogs in Commander anyway that you dont need to worry about your opponents playing around it