Nothing in the game can remove an emblem, simply because no other spell or ability references them
It gives me the same satisfaction that Dungeons & Dragons or board games give me of being able to gather a bunch of my friends and do something fun together
The most important factors are edition (1st Edition, Shadowless, Unlimited), condition (mint cards command premiums), rarity (holographic, secret rare, full art), age (vintage Base Set cards are highly sought after), and the Pokemon itself (Charizard, Pikachu, and fan favorites are worth more)
Centering must be between 60%/40% to 65%/35% or better on the front and 90%/10% or better on the back
As the value of these cards continues to increase, and the market gets more and more competitive, incidents like this become more likely