As one of those TCG players that spends money on cardboard crack, double-sleeving and all, multiple sets for both play and collection, etc...
I take back my previous suggestions on how to properly improve the game. No matter what she does with it, the product will easily sell, but it will never have actual legs as a proper game outside of this very niche consumer base.
Combined with new chuuba-based TCGs all competing for the same resources, I would recommend against taking any one of them seriously, until and unless they actually prove themselves as a playable game. If you want to support "indie" card games, look into Flesh & Blood, Grand Archive, or Elestrals instead, if you're not already into the madness with Vanguard/Wixoss/Weiss Schwarz/Shadowverse, or the big boys of Pokémon/Yu-Gi-Oh/Digimon/One Piece.
In short, degrading the customer is a non-starter, in a saturated market such as TCGs!