Backbreaking in casual, and format warping at competitive tables, Hullbreachers asymmetrical resource denial that concurrently generates a massive advantage proved to be too much
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for Ezuri, Claw of Progress: Experience counters are the second kind of counters a player can have, joining poison
Somehow, even in a 100-card singleton format, theres never enough room for all the cool spells you want to include, plus the necessary lands to make the deck work
Even within the rules of fan-art I listed above: people buying it know theyre buying a proxy, a replicated card (at least, assuming its not someone trying to hock a proxy off as being authentic) the fact that it does use authentic artwork is tricky, and maybe the most grey of greys involved proxies dont interfere with the rights-holders from selling cards because, well, the rights-holders dont get ANY money from the secondary market to begin with