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from jamie: more small notes on format-related operators:

card_pool is currently described as "similar to the rotation operand in the old syntax", which is only helpful if you are familiar with the old syntax. it could be described more independently something like this: "The possible arguments (listed below) each refer to a play format that includes certain card sets and cycles. card_pool: returns all cards from the sets included in , ignoring banlists and any other deckbuilding limitations at the individual card level."

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eternal_points is tricky. I want to be able to do just eternal_points:2 and have it default to the current points list, rather than always having to specify a restriction ID. but I also want numeric operations like eternal_points>1, which might be mutually exclusive with having the option to include a restriction ID. maybe more than one operator is needed?

if you use eternal_points with format:eternal it will default to the latest. eternal_points:2 with format:standard should do .... what exactly? Some stuff to consider here for "dependent" or related operands.

I don't know what has_global_penalty is supposed to be. "global penalty" is not a term I'm familiar with and sounds like it might be trying to capture more than one kind of thing? I tried it with several of the listed operands, but most of them give no results. the example given is one of the only ones that does give any results, and based on that I'm guessing it might be universal influence from the original MWL. if so, it should explain what universal influence actually was (for a reader who wasn't around at the time) and that it was only used for a small number of formats (and then maybe only include those specific formats in the list of operands).

the terminology for older deckbuilding restrictions is annoying if you weren't there and definitely could use some more context.

similarly, is_restricted should explain what "restricted" means
in_restriction could use an expanded description, as it's not totally clear what it does. my best guess is it means "has the card ever been banned, restricted, or pointed in any official format?"
I'm not sure we need the "is" on is_banned and is_restricted

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