Decks must be registered before the event and cannot be changed
According to representatives for PWCC, this particular Charizard was "one of the cleanest copies in existence", with there being no sign of wear or tear, no imperfections in the holographic foiling, and the print being perfectly centred on the card
Source: Heritage Auctions
After all, very few cards can stop a 20/20 with flying and indestructible, even in such a high-powered format like Legacy
While its true only three Charizards have received the coveted 10 grade from BGS, there are millions of the card out there that could theoretically get that score
In fact, I almost like the artifact/token generation on Obsessive Pursuit more than the prospect of sacrificing Clues for card draw