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Should there be a 'community' for proxies?
(mtgzone.com)
General discussion, questions, and media related to Magic: the Gathering that doesn't fit within a more specific community. Our equivalent of /r/magicTCG!
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The OP is probably mentioning it because there was a subreddit for it. I was subbed, it was mostly creative proxy card art, custom card backs, and a bit of discussion.
At this point I think we're far too small to have more niche mtg related communities though.