Going forward, more issues like this Esper situation are likely to arise
Build your sealed deck with six Draft Boosters and two foil-stamped promo cards: a rare or mythic rare from the set plus a beautiful borderless scene card to assemble a scene available only through Prerelease Packs and Collector Boosters
He is a flash 2/2 for four mana and can bounce on arrival to the battlefield any spell or permanent, even a land
So even though its health gets reduced to zero, nothing will happen to it
The great weakness of EDH theft decks is losing permanents when the player who controlled them leaves the game
While Wizards has mentioned increasing the drop rate of the Universes Beyond reprints, unless they are willing to massively increase the drop rate (which seems unlikely, because if everyone knows they can easily get Magic versions of Universes Beyond Secret Lair cards in a few months they might be less likely to buy the Secret Lair drops, and Lairs are hugely profitable for Wizards and Hasbro ), it doesn't seem likely that The List "reprints" will be enough to solve the supply issues that could arise if one of the exclusive cards becomes a format staple