Xi Gundam (ST08-002) (C+).

What moves the price of this card

The Xi Gundam (ST08-002) (C+) on this page is the Holofoil printing from Starter Deck 08: Flash of Radiance, and it trades at $10.53 in near mint condition. The same name is on 7 other printings: Starter Deck 08: Flash of Radiance ST08-001 at $41.24, Steel Requiem GD03-036 at $7.71, Starter Deck 08: Flash of Radiance ST08-001 at $0.55, Gundam Promotional Cards ST08-002 at $0.35, Steel Requiem GD03-036 at $0.19, Phantom Aria GD04-035 at $0.17, Starter Deck 08: Flash of Radiance ST08-002 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.