Killer.

What moves the price of this card

The Killer on this page is the Normal printing from Emperors in the New World, and it trades at $0.09 in near mint condition. The same name is on 8 other printings: One Piece Promotion Cards OP01-039 at $2.90, One Piece Promotion Cards OP10-106 at $2.33, Starter Deck 36: YELLOW Eustass"Captain"Kid ST36-002 at $1.92, The Azure Sea's Seven Release Event Cards OP14-005 at $1.40, Super Pre-Release Starter Deck 2: Worst Generation ST02-005 at $1.23, One Piece Promotion Cards OP01-039 at $1.17, Emperors in the New World: 2nd Anniversary Tournament Cards OP09-064 at $1.12, Royal Blood Release Event Cards OP10-106 at $0.78, so read the set, the number and the rarity together before comparing prices.

Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.