I Knew You People Were Behind This.
Lowest ask = the cheapest current listing. Market = TCGplayer's rolling market price. Latest daily snapshot: Sep 5, 2026.
Market read
Snapshot of Sep 5, 2026: $0.01 is the cheapest listing we can see for I Knew You People Were Behind This., with TCGplayer's market price at $0.13. That ask is 92.3% below its 7-day trailing median of $0.13. We rate confidence thin here and the ask sits 92% below the market price, so treat the figure as indicative rather than a valuation. It is one of 30 Common cards we track in Extra Booster: One Piece Heroines Edition (94 cards in the set overall). Prices are asks from current listings, not completed sale prices, and the snapshot refreshes once daily.
Price history
Daily TCGplayer market and lowest-ask price for I Knew You People Were Behind This. from the InkSight One Piece snapshot. Interactive chart loads with live data.
Marketplace
Compare TCGplayer singles, eBay raw and graded listings, and Whatnot live breaks. Affiliate links load with latest daily snapshot pricing.
Set context
Extra Booster: One Piece Heroines Edition. Full Extra Booster: One Piece Heroines Edition set index →. See more One Piece pricing on the market hub, movers, and top cards. See every I Knew You People Were Behind This. card we track or the full One Piece character index.
Related cards
Other printings, same-rarity neighbours and cards from Extra Booster: One Piece Heroines Edition.
Other cards in Extra Booster: One Piece Heroines Edition
Cards from the same set at a similar price, from the same daily snapshot.
