The company shared the news in a post online, where they revealed that some of the cards will have a mysterious Ditto logo in the bottom left corner

Adaptive Shimmerer Aether Meltdown All Is Dust Amaranthine Wall Applied Aeronautics Arcane Infusion Archive Trap Archweaver Artisan of Kozilek Auto-Key Blighted Woodland Bogstomper Butcher's Cleaver Charging Binox Chittering Host Chitterspitter Coalition Relic Codex Shredder Conjurer's Closet Corridor Monitor Creeping Tar Pit Crown of Skemfar Crux of Fate Crypt of Agadeem Crystalline Crawler Cultivate Cyclops Electromancer Death-Hood Cobra Deathless Behemoth Demonmail Hauberk Dismember Duplication Device Elder Deep-Fiend Eldrazi Obligator Emrakul's Evangel Encrust Endless One Essence Symbiote Ethereal Elk Fall of the Thran Feast of Blood Fragmentize Ghostly Touch Gisa's Bidding Gleaming Barrier Gnomeball Machine Graf Rats Grim Initiate Harvest Hand Heartstabber Mosquito Hedron Rover Hedron Scrabbler Herald's Horn Humbler of Mortals Hydroid Krasis Intrusive Packbeast Invasion of the Giants Inventor's Goggles It of the Horrid Swarm Journey to Oblivion Kozilek's Channeler Kozilek's Shrieker Kraken Hatchling Laboratory Maniac Lampad of Death's Vigil Lashwrithe Living Lore Lore Seeker Lucille Magma Hellion Mask of Griselbrand Midnight Scavengers

Adun Oakenshield is a weird commander for a knight deck considering it doesnt have access to white, which is the commander color in which knights have the most support
Panharmonicon itself never actually triggers, it simply means anything that triggers from a creature or artifact entering the battlefield will trigger again
A lot of people who showed up on the day needed to be turned away
The idea here is to attack with +1/+1 counter creatures, proliferate them with Kilo, then repeat during your extra combat