It ensures the cards are durable and long-lasting
KashtiraBigChungus didn't specify the playstyle for this deck
If you plan to invest in a card worth $5,000+ one day in the future, youll have to pay PSA $300 just to reappraise it and if the markets hot enough to sell it, theres a chance the company will become overwhelmed again and suspend services, jeopardizing your timing
Having lifelink is a nice bonus against aggressive decks, and in the late game, we can often use the sacrifice ability to fizzle a removal spell (by saccing a creature that was about to die anyway)
Due to this apparent ubiquity, Pokmon fans were reportedly desperate to obtain this card which value is expected to increase
If she does end up doing work before then, perhaps alongside Prophetic Flamespeaker, a rebound into double digits is plausible