Marketboards are cross-world
Today, gaining tapping and gaining 5 or 6 life for each time in Commander it's not as strong with its 40-life start, and there aren't as many of these running around to abuse the table with 4 in each deck, and there's not the obvious Elf deck power for most multiplayer tables where you usually had one, and sometimes two

Archipelagore Auspicious Starrix Boneyard Lurker Brokkos, Apex of Forever Brokkos, Apex of Forever Cavern Whisperer Chittering Harvester Cloudpiercer Cubwarden Dirge Bat Dreamtail Heron Everquill Phoenix Everquill Phoenix Gemrazer Gemrazer Glowstone Recluse Huntmaster Liger Huntmaster Liger Illuna, Apex of Wishes Illuna, Apex of Wishes Insatiable Hemophage Lore Drakkis Majestic Auricorn Migratory Greathorn Mindleecher Necropanther Nethroi, Apex of Death Nethroi, Apex of Death Otrimi, the Ever-Playful Parcelbeast Pollywog Symbiote Pollywog Symbiote Porcuparrot Pouncing Shoreshark Regal Leosaur Sawtusk Demolisher Sea-Dasher Octopus Snapdax, Apex of the Hunt Snapdax, Apex of the Hunt Souvenir Snatcher Surgeon General Commander Trumpeting Gnarr Vadrok, Apex of Thunder Vadrok, Apex of Thunder Vulpikeet
While it costs more mana, its less restrictive because you dont need more than a single red mana
Those copies immediately die due to the legend rule, but you still get their ETB triggers, letting you tutor up 3+ things: the Kaldra pieces
Coming at it from the other direction your list will also benefit more from raw draw effects and perhaps less from other value generators than average