"If you search for a battle when you're using a Horizon Basic File, the system will try to pair you up with another Horizon Basic user"
I'm a bit sceptical about the word 'try' in here, especially considering alteil's low player base it may be an empty statement. It may be nice to add the option of locking out non Horizon Basic user and make it the default. That way people can toggle it off if they aren't afraid of facing potentially more powerful files outside of the current horizon basic cards collection and don't want to wait any longer, but people aren't forced into playing against them (I remember playing against meta files with relatively weak underdog files and it usually wasn't a good game, I'd rather just have the game client idle for a long time untill it tells me a match is found by a sound effect)
I do hope that Horizons will allow casual players to collect enough gran/fm/point cards without grinding/paying such that they can attain a couple of viable files whenever the basic set changes, but we'll likely get info on that at a later date.
Just as has been preposed for UD, it'd be nice if we could filter for Horizon Basic cards in the file editor and have some mark or check to tell us which files are in the current Horizon Basic format.
"Truly, if there is evil in this world, it lies within the heart of mankind.'