**The "Down" outcome at 67.5% implied probability is driven primarily by the imminent release of the Mega Forces Tins on August 28, which include a new alternate-art Mega Dragonite ex promo alongside four booster packs.** With the main Special Illustration Rare (290/217 from Ascended Heroes) already trading in the $650–$710 range after its January 2026 debut, the sudden increase in supply from these widely available $21.99 tins is expected to exert downward pressure on secondary-market prices by August 31. Historical patterns in the Pokémon TCG show that chase cards from major sets often soften when promotional variants hit retail en masse, especially when the original print run has had months to circulate. Traders are also noting stable or slightly softening recent sales data on platforms like TCGPlayer and eBay, with no major new hype or competitive play developments to offset the supply surge. While sealed product demand and collector interest in Dragonite’s evolution line could provide some floor, the short timeline to the tin launch leaves little room for positive momentum before the August 31 snapshot.