It's a calculated average of recent sales for that specific card on the TCGplayer platform
Some were more important than others: For instance, Stinging Barrier was a first pick in its block, since the block was slow, creatures had low toughnesses, and low powers
Holographic pattern: Real holographic cards have a distinct, high-quality foil pattern, while counterfeit cards may have a low-quality, dull, or incorrect foil pattern
Everything that is off-putting about Obliterate (aside from the fact that it can't be counted) is present here too
Disney Lorcana card rarity explained How to identify Disney Lorcana card rarity Disney Lorcana rarity symbols How many Lorcana cards are there in The First Chapter
Expected to be the rarest and most valuable card in the whole One Piece TCG - Luffy Eiichiro Oda Signed Card