Like most Magic: The Gathering cards, the value of Panharmonicon depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Double Masters 2022)
However, a recent announcement indicates this could be a short-term gimmick instead of a long-lasting one
Its tricksy, in both flavor and function, and its also the least frequent of the four bending keywords (this is The Last Airbender, after all)
Weakness: Fighting (x2) Resistance: none Retreat: 1 Emolga - Lightning - HP70 Basic Pokemon [C] Lucky Find: Search your deck for 1 Item card, reveal it, and put it in your hand
Holo means the Pokmon artwork is shiny and reflective while reverse holo means the artwork is matte but the rest of the card is shiny