Strike Gundam (GD01-077).

What moves the price of this card

The Strike Gundam (GD01-077) on this page is the Normal printing from Edition Beta, and it trades at $0.31 in near mint condition. The same name is on 6 other printings: Starter Deck 04: SEED Strike ST04-002 at $12.15, Gundam Promotional Cards ST04-002 at $0.86, Edition Beta ST04-002 at $0.31, Starter Deck 04: SEED Strike ST04-002 at $0.15, Starter Deck 09: Destiny Ignition ST04-002 at $0.13, Newtype Rising GD01-077 at $0.12, 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.