One set that recently came to my attention that is not identified on the identification chart for English cards (see below) is called "Alternate 4th Edition"
//// Arcee, Acrobatic Coupe Color indicator: red, white Legendary Artifact Vehicle 2/2 Living metal (As long as it's your turn, this Vehicle is also a creature.) Whenever you cast a spell that targets one or more creatures or Vehicles you control, put that many +1/+1 counters on Arcee
In Streets of New Capenna , both Expendable Lackey and Exotic Pets can churn out 1/1 blue fish creature tokens, and the New Capenna fish tend to be unblockable

Mono-Blue Milling | Commander | Abe Sargent Commander (1) 1 Neerdiv, Devious Diver Creatures (13) 1 Archmage Archivist 1 Archmage's Newt 1 Bruvac the Grandiloquent 1 Jace, Vryn's Prodigy 1 Laboratory Maniac 1 River Kelpie 1 Slickshot Lockpicker 1 Snapcaster Mage 1 Sphinx of Forgotten Lore 1 Talrand, Sky Summoner 1 The Mindskinner 1 Zellix, Sanity Flayer 1 Whispering Wizard Instants (17) 1 Aetherize 1 Counterspell 1 Cryptic Command 1 Dissipate 1 Dream Twist 1 Fervent Denial 1 Memory Deluge 1 Oona's Grace 1 Pongify 1 Rapid Hybridization 1 Reenact the Crime 1 Refute 1 Resculpt 1 Silundi Vision // Silundi Isle 1 Sink into Stupor // Soporific Springs 1 Sinister Sabotage 1 Think Twice Sorceries (14) 1 Artful Dodge 1 Chill of Foreboding 1 Deep Analysis 1 Fractured Sanity 1 Increasing Confusion 1 Inspiration from Beyond 1 Maddening Cacophony 1 Mass Diminish 1 Otterball Antics 1 Scour all Possibilities 1 Sea Gate Restoration // Sea Gate, Reborn 1 Self-Reflection 1 Silent Departure 1 Tasha's Hideous Laughter Enchantments (5) 1 Drowning Secrets 1 Metallurgic Summoning 1 Psychic Corrosion 1 Secrets of the Dead 1 Shark Typhoon Artifacts (14) 1 Blackblade Reforged 1 Buried Treasure 1 Crucible of Worlds 1 Decanter of Endless Water 1 Paradise Mantle 1 Patriar's Seal 1 Relic of Legends 1 Sapphire Medallion 1 Sky Diamond 1 Sol Ring 1 Springleaf Drum 1 Swiftfoot Boots 1 Throne of Eldraine 1 Thought Vessel Lands (36) 1 Academy Ruins 1 Demolition Field 1 Drannith Ruins 1 Drownyard Temple 1 Forge of Heroes 1 Hall of Oracles 1 Holdout Settlement 1 Karn's Bastion 1 Maze of Ith 1 Minamo, School at Water's Edge 1 Mystic Sanctuary 1 Myriad Landscape 1 Nykthos, Shrine to Nyx 1 Reliquary Tower 1 Rogue's Passages 1 Scene of the Crime 1 Survivors' Encampment 1 Tyrite Sanctum 1 War Room 17 Island There we go

Over time, I suspect that these will continue to climb due to the Secret Lair not being printed to demand