Seeing the extra cards is the icing on the cake
Most of them benefit both Commander options
While most card types stay on the battlefield (these are known as permanents) sorceries go to your graveyard as soon as their effect is resolved
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While we've seen a few scattered cards show up here and there, if you look through tournament lists and the metagame page, things look more or less the same as they did a couple of weeks ago, before Strixhaven was released
That enchantment was originally part of 1998's Stronghold set and can only be found in The List (a curated list of older cards that no longer appear in Play Boosters nowadays), making it rather hard to acquire unless you pay the circa $4 to buy it on some kind of marketplace