Kira Yamato.

What moves the price of this card

The Kira Yamato on this page is the Normal printing from Starter Deck 04: SEED Strike, and it trades at $0.40 in near mint condition. The same name is on 8 other printings: Gundam Promotional Cards ST04-010 at $365.47, Freedom Ascension ST04-010 at $141.88, Freedom Ascension GD05-081 at $52.30, Starter Deck 04: SEED Strike ST04-010 at $24.71, Gundam Promotional Cards ST04-010 at $8.93, Edition Beta ST04-010 at $1.38, Freedom Ascension GD05-081 at $1.15, Starter Deck 09: Destiny Ignition ST04-010 at $0.20, 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.