To choose a creature type, you must choose an existing creature type, such as Human or Knight
You have to have sleeves or use a different card, and then you have to pull the card out of the sleeve when it transforms
Then discard two cards
Eternal Scourge I wouldnt be mentioning Eternal Scourge if Food Chain didnt exist, but Food Chain is certainly a card someone made for some reason, so I feel obligated to bring up the colorless creature that can loop with the enchantment to make infinite mana
(6/6/2025) If something refers to your commander while you have two commanders, it refers to one of them of your choice
Any "regular" play mode (e.g., "Ranked", "Ranked Draft", "Quick Play") was intended to be best-of-one and was initially referred to by WotC as "Arena Standard" outside of the client