Related question that I wondered about was how they acquired all the artwork for Mage Wars. Are all these commissioned pieces or did they bulk buy a bunch of unused artwork through a third party aggregator? I don't even know if these exist for this specific purpose but the business sense in me tells me they do, or should.
One reason I thought the latter was because there is one artist (I won't name names) that I thought did pretty poor artwork for WOTC in early MTG days, still does artwork, but has shown improvement. Their Mage Wars art looks pretty bad imo and reminded me of their early work from 15+ years ago.