**Trader consensus heavily favors a price decline for the Phantasmal Flames Booster Box by August 31, reflected in the 79% implied probability for “Down.”** Released in November 2025 as the second main expansion in Pokémon’s Mega Evolution series, the set is now nine months old. This timing typically brings softening sealed-product values as supply accumulates from distributor allocations, Pokémon Center direct sales at roughly $162 MSRP, and collector openings. Recent price data shows stabilization around $400 on secondary markets like TCGPlayer after peaking near $460 in June 2026, with limited upward momentum. No major new hype, chase-card surges, or official reprints have emerged to support prices, while newer expansions continue to draw collector attention and capital. The combination of ongoing official supply, a mature product cycle, and typical post-release depreciation patterns for Pokémon TCG booster boxes underpins the strong market lean toward lower prices by month-end.