Card text
[Main] You may rest 7 of your DON!! cards: If your Leader is [Perona], play up to 1 {Thriller Bark Pirates} type Character card with a cost of 6 or less and up to 1 {Thriller Bark Pirates} type Character card with a cost of 4 or less from your hand or trash.
[Counter] Your Leader gains +3000 power during this battle.
I Knew You People Were Behind This.
Extra Booster: One Piece Heroines Edition (EB-03-04) · EB03-049
Cheapest
US$0.01
at TCGplayer · postage at checkout
Cheapest · the United States
US$0.01
In stock at · US
29 stores
47 stores in other markets
Cost
1
Cheapest first by item price; postage is added at each store's checkout. How we compare prices →
Price comparison (29) · the United States
oldest listing 9h ago- 1US$0.01→
TCGplayerCheapest
lowest listingIn stockpostage at checkoutupdated 5m agoPaid link
- 2US$0.08→
ATOMILI COLLECTABLES
NMIn stockpostage at checkoutupdated 5m ago
- 3US$0.10→
Impact Gaming Center
NMIn stockpostage at checkoutshipping policy ↗updated 5m ago
- 4US$0.10→
Trove of Collectibles
NMIn stockpostage at checkoutshipping policy ↗updated 4m ago
- 5US$0.10→
LTs Hobbies
NMIn stockpostage at checkoutupdated 9h ago
- 6US$0.15→
Unsettled Geeks
NMIn stockpostage at checkoutupdated 9h ago
- 7US$0.19→
FIVE6 Gaming
LPIn stockpostage at checkoutshipping policy ↗costs more than the cheapest NM hereupdated 0m ago
- 8US$0.21→
Jumping Jasper
NMIn stockpostage at checkoutupdated 9h ago
- 9US$0.25→
Tabletop Gaming Center
NMIn stockpostage at checkoutupdated 9h ago
- 10US$0.25→
Eclipse Cards and Hobby
NMIn stockpostage at checkoutshipping policy ↗updated 0m ago
- 11US$0.25→
Guardian Games
NMIn stockpostage at checkoutupdated 0m ago
- 12US$0.25→
GG Legends
NMIn stockpostage at checkoutshipping policy ↗updated 5m ago
- 13US$0.25→
Cape Fear Collectibles
NMIn stockpostage at checkoutshipping policy ↗updated 5m ago
- 14US$0.25→
Haiku Gaming
NMIn stockpostage at checkoutupdated 9h ago
- 15US$0.25→
Lotus Games (Colchester)
NMIn stockpostage at checkoutupdated 9h ago
- 16US$0.25→
Darkstone Comics
In stockpostage at checkoutupdated 9h ago
- 17US$0.25→
Collective Cubed
LPIn stockpostage at checkoutcosts more than the cheapest NM hereupdated 9h ago
- 18US$0.25→
Black Vault Gaming
LPIn stockpostage at checkoutshipping policy ↗costs more than the cheapest NM hereupdated 4m ago
- 19US$0.25→
Wolf Den Gaming
LPIn stockpostage at checkoutshipping policy ↗costs more than the cheapest NM hereupdated 4m ago
- 20US$0.25→
Hoard
LPIn stockpostage at checkoutcosts more than the cheapest NM hereupdated 9h ago
- 21US$0.25→
Wayward City Games
NMIn stockpostage at checkoutshipping policy ↗updated 9h ago
- 22US$0.30→
Miller's Comics, Cards, Collectibles
NMIn stockpostage at checkoutupdated 9h ago
- 23US$0.47→
The Mighty Meeple
LPIn stockpostage at checkoutcosts more than the cheapest NM hereupdated 9h ago
- 24US$0.49→
The Vault
NMIn stockpostage at checkoutupdated 9h ago
- 25US$0.49→
Evolution Games
NMIn stockpostage at checkoutupdated 9h ago
- 26US$0.49→
Level Up Games MD
NMIn stockpostage at checkoutshipping policy ↗updated 0m ago
- 27US$0.50→
Magic and Monsters
NMIn stockpostage at checkoutupdated 0m ago
- 28US$1.00→
Danireon Cards & Games
NMIn stockpostage at checkoutshipping policy ↗updated 4m ago
- 29US$1.00→
Eternal Games Chesterfield
LPIn stockpostage at checkoutshipping policy ↗costs more than the cheapest NM hereupdated 0m ago
10 out-of-stock stores
Stores we have seen stock this card. A sold-out store is checked again at every import.
- Devastation Store Miamilast seen 0m ago · US$0.10Check →
- Vegas Singleslast seen 4m ago · US$0.50Check →
- PokeBox USAlast seen 4m ago · US$0.25Check →
- NP Collectibleslast seen 4m ago · US$1.00Check →
- Hobbiesvillelast seen 4m ago · US$1.00Check →
- Josh's Cardslast seen 9h ago · US$0.05Check →
- NOLA TCG Experiencelast seen 9h ago · US$0.03Check →
- Brick & Board Games and Cardslast seen 9h ago · US$0.08Check →
- The Castle Gameslast seen 9h ago · US$0.10Check →
- Triad Cards and Gaminglast seen 9h ago · US$0.99Check →
Prices are collected from public store listings and may change. How we compare prices
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US$0.10
What this has recently sold for on TCGplayer — a reference value, not a listing.
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Card text
[Main] You may rest 7 of your DON!! cards: If your Leader is [Perona], play up to 1 {Thriller Bark Pirates} type Character card with a cost of 6 or less and up to 1 {Thriller Bark Pirates} type Character card with a cost of 4 or less from your hand or trash.
[Counter] Your Leader gains +3000 power during this battle.
Price history (USD · lowest price)
TCGplayer market shown in USD at an indicative rate
Now US$0.01Low US$0.01High US$0.01
About I Knew You People Were Behind This.
I Knew You People Were Behind This. (EB03-049) is a Black Character of the Thriller Bark Pirates type from Extra Booster: One Piece Heroines Edition (EB-03-04). It costs 1. It is printed at Common rarity. Its effects fire at [Counter] and [Main].
The cheapest listing we track in the United States is US$0.01, 90% below TCGplayer's US$0.10 market price. 29 stores have it in stock, and the next-cheapest listing is US$0.08, 700% more than the cheapest, so the first row is worth taking.
The United States is the cheapest of the 5 markets that have it, and the United Kingdom is dearest at about 3100% more once converted. In each market's own currency the cheapest listings read US$0.01 in the United States, €0.02 in the EU, C$0.15 in Canada, A$0.25 in Australia and £0.25 in the United Kingdom. Conversions use indicative exchange rates, and postage, duty and import tax are not included, so a cheaper market elsewhere is a fact about listings and not a reason to import.
It is trading at its 90-day high of US$0.08.
Extra Booster: One Piece Heroines Edition is an extra booster, released February 2026. It is one of the cheaper cards in the set, below 84% of the 104 that have a price. The set's median card is US$0.52.
[Main] You may rest 7 of your DON!! cards: If your Leader is [Perona], play up to 1 {Thriller Bark Pirates} type Character card with a cost of 6 or less and up to 1 {Thriller Bark Pirates} type Character card with a cost of 4 or less from your hand or trash. [Counter] Your Leader gains +3000 power during this battle.
Frequently asked questions
- How much does I Knew You People Were Behind This. EB03-049 cost?
- The cheapest live price for I Knew You People Were Behind This. (EB03-049) is currently US$0.01 across 29 stores in the United States, and TCGplayer's market price is US$0.10; every other market we cover is compared on this page too. Prices are read twice a day.
- How much is I Knew You People Were Behind This. in other currencies?
- US$0.01 in the United States, €0.02 in the EU, C$0.15 in Canada, A$0.25 in Australia and £0.25 in the United Kingdom. Each is a real listing in the currency its seller bills in.
- What set is I Knew You People Were Behind This. from?
- I Knew You People Were Behind This. is card EB03-049 from Extra Booster: One Piece Heroines Edition (EB-03-04) in the One Piece Card Game. It is a common Black character.
- Where can I buy I Knew You People Were Behind This.?
- Compare every store selling I Knew You People Were Behind This. across the US, Australia, the UK, Singapore, Canada and the EU on this page, then buy from whichever seller offers the lowest total including postage. OP Compare links straight through to each store.
I Knew You People Were Behind This. price by market
I Knew You People Were Behind This. is cheapest in the United States at US$0.01 and dearest in the United Kingdom at £0.25 (≈ US$0.32), a 3100% spread across the 5 markets stocking it. Each seller bills in its own currency; converted figures are indicative only.
| Market | Cheapest | ≈ USD | Stores |
|---|---|---|---|
| United StatesCheapestYour market | US$0.01postage at checkout | 29 | |
| Europe (EU) | €0.02postage at checkout ≈ US$0.02 | 6 | |
| Canada | C$0.15postage at checkout ≈ US$0.11 | 27 | |
| Australia | A$0.25postage at checkout ≈ US$0.17 | 13 | |
| United Kingdom | £0.25postage at checkout ≈ US$0.32 | 1 |
Prices are live listings in each market, in the currency that seller charges. The “≈ USD” column is an indicative conversion for comparison only: not a quote, and not what you'll be billed. Stores generally ship within their own market, and international postage, duty and import tax aren't included, so a cheaper market elsewhere isn't necessarily cheaper to get delivered to you.
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Card details
- Card number
- EB03-049
- Set
- Extra Booster: One Piece Heroines Edition (EB-03-04)
- Set type
- Extra booster
- Released
- 20 February 2026
- Rarity
- Common (C)
- Printing
- Standard
- Card type
- Character
- Colour
- Black
- Cost
- 1
- Attribute
- —
- Types
- Thriller Bark Pirates
- Finish
- Normal
TCGplayer listing: I Knew You People Were Behind This.
Also available on eBay
Live listings, including used and international sellers: a useful cross-check on the store prices above, and often the only source for older printings. Graded slabs get their own tab, so they never distort the raw price. eBay prices are sellers' asking prices and are never ranked with the stores.
As an eBay Partner Network affiliate, OP Compare earns from qualifying purchases.
Affiliate link: as an eBay Partner Network affiliate, OP Compare earns from qualifying purchases — at no extra cost to you.
More from Extra Booster: One Piece Heroines Edition
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