Meta decks against your own collection: what you can field, and what a few upgrades would open

An agent recommended a deck from the corpus meta that the player could not play: two of the top four rows ran a card he does not own, and the top row, at his actual card levels, sat two mean levels below what he had been fielding all month. The population's decks are facts about the population; sorted by win rate they read as advice, and nothing in the response checked what the caller holds. Now battles_meta_decks and battles_meta_cards take fit_for, a player tag: rows the player cannot field (a card not owned, a form not unlocked) leave the deck list for an unfieldable list that says why, every remaining row says what the deck would be at the player's levels against what they have actually been fielding, and lists the upgrade path - each card below that level and how far it has to go - so an agent can say both 'here is what you can play today' and 'this deck opens up if Archer Queen and Earthquake come up five levels'. players_collection carries the same benchmark: the mean level of the decks you have really played in the last thirty days. Contract 6.4.0, additive.