As I mentioned in my "What is Commander to You?" article, I discuss various things that people take away and look for from the format
It doesn't copy whether that Aura was tapped or untapped, whether it had any counters on it or Auras attached to it, or any non-copy effects that changed its types, color, and so on
Promo Info LIMITED CARD SET 2023 CLOSECLOSE P-102 P Digimon Lv.5 SkullGreymon Color Purple Red Form Ultimate Attribute Virus Type Undead DP 7000 Cost 7 Digivolve Cost 1 4 from Lv.4 Digivolve Cost 2 4 from Lv.4 Upper Text [On Play][When Digivolving] By deleting 1 of your Digimon, delete 2 of your opponent's Digimon with 5000 DP or less
While this move seems unlikely to directly create any reprint equity (although it could, if expensive cards from Portal and other weird non-Modern sets can be reprinted more easily without the "Modern" in front of "Masters"), taking the focus off of Modern specifically will gives Modern staples some room to breathe and, assuming the format and game keep growing, slowly increase in price until they are eventually exciting and valuable reprints once again
It comes back with a +1/+1 counter to boot
If you have another Mothman in the deck, and you have a good card to discard in your hand (like Trivikarma, Malicious, a Shuffler) you can use Mothman first, because if you hit itself you can always discard that card