The answers below explain key details about the Two Legends expansion
So, here is a full list of Pokmon cards that were previously banned and/or replaced with new artwork
When Minsc & Boo, Timeless Heroes enters the battlefield and at the beginning of your upkeep, you may create Boo, a legendary 1/1 red Hamster creature token with trample and haste.+1: Put three +1/+1 counters on up to one target creature with trample or haste.2: Sacrifice a creature
While his starting loyalty may be low, Tyvar has many ways to protect himself and gives Elf decks even more mana to make use of
The Apprentices Folly is a four mana saga that offers a powerful opportunity
therefore a proxy of a 1st Edition Charizard for $4 interferes with Nintendos ability to sell authentic 1st Edition Charizards in literally NO WAY because Nintendo will never sell a 1st Edition Charizard ever again its hard to determine if proxies strengthen or dilute the perception of the game but it might be argued that its a positive consequence of the actual high value the cards hold on the secondary market So because proxies serve a niche, and many proxies are of cards that the original game producers will NEVER reproduce ever again, the fact that it uses authentic artwork might not be enough for the original game producers to jump into action