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That limits this to very few archetypes

Permanents that gain counters later in the turn won't become affected by this effect, and permanents that lose all of their counters later in the turn won't stop being affected

Every card on the platform is available to play, with the most powerful ones restricted to a single copy

Theyre thin, sure but they do provide just enough protection that cards which will be seeing quite a bit of use wont get damaged or marked through play

It's an ability normally reserved for skillful warriors and martial artists or speedy beasts, so it's really weird for it to be given to a floating hologram wall