We dont know yet, nothing has been officially confirmed
Despite how powerful it is, you won't see many people wielding this card in the wild, since it's banned in almost every game format
Each deck includes: Ready-to-play 100-card Commander deck 2 Traditional foil new-to- Magic legendary creatures that can serve as the deck's commander 8 Non-foil new-to- Magic rares from March of the Machine Commander specific to that deck 90 Non-foil Magic cards, including basic lands 1 Foil-etched display commander printed on thicker cardstock 10 Oversized March of the Machine Planechase cards, specific to the deck 1 Planar die for Planechase play 1 Collector Booster Sample Pack 1 Non-foil or traditional foil March of the Machine rare or mythic rare card Includes extended-art cards, select March of the Machine Commander cards, and select Multiverse Legends rares Does not include foil-etched, Halo foil, or serialized Booster Fun cards 1 Traditional foil uncommon Multiverse Legends card 10 Double-sided tokens A cardboard deck box and life counter March of the Machine Prerelease Pack One of the coolest ways to experience the latest cards is at the first events to have them: Prerelease events at your local game store
This means that it can sometimes just be a huge creature that cant get through your opponents chump blockers
Ice Flan is solid mana fixing and is definitely not embarrassing if you need to cast it
I'd consider this in a Golgari Commander deck, though Undergrowth Stadium clearly has no home outside of multiplayer formats
